The Astrophysical Journal (Jan 2023)
The Event Horizon Telescope Image of the Quasar NRAO 530
- Svetlana Jorstad,
- Maciek Wielgus,
- Rocco Lico,
- Sara Issaoun,
- Avery E. Broderick,
- Dominic W. Pesce,
- Jun Liu,
- Guang-Yao Zhao,
- Thomas P. Krichbaum,
- Lindy Blackburn,
- Chi-kwan Chan,
- Michael Janssen,
- Venkatessh Ramakrishnan,
- Kazunori Akiyama,
- Antxon Alberdi,
- Juan Carlos Algaba,
- Katherine L. Bouman,
- Ilje Cho,
- Antonio Fuentes,
- José L. Gómez,
- Mark Gurwell,
- Michael D. Johnson,
- Jae-Young Kim,
- Ru-Sen Lu,
- Iván Martí-Vidal,
- Monika Moscibrodzka,
- Felix M. Pötzl,
- Efthalia Traianou,
- Ilse van Bemmel,
- Walter Alef,
- Richard Anantua,
- Keiichi Asada,
- Rebecca Azulay,
- Uwe Bach,
- Anne-Kathrin Baczko,
- David Ball,
- Mislav Baloković,
- John Barrett,
- Michi Bauböck,
- Bradford A. Benson,
- Dan Bintley,
- Raymond Blundell,
- Geoffrey C. Bower,
- Hope Boyce,
- Michael Bremer,
- Christiaan D. Brinkerink,
- Roger Brissenden,
- Silke Britzen,
- Dominique Broguiere,
- Thomas Bronzwaer,
- Sandra Bustamante,
- Do-Young Byun,
- John E. Carlstrom,
- Chiara Ceccobello,
- Andrew Chael,
- Koushik Chatterjee,
- Shami Chatterjee,
- Ming-Tang Chen,
- Yongjun Chen,
- Xiaopeng Cheng,
- Pierre Christian,
- Nicholas S. Conroy,
- John E. Conway,
- James M. Cordes,
- Thomas M. Crawford,
- Geoffrey B. Crew,
- Alejandro Cruz-Osorio,
- Yuzhu Cui,
- Jordy Davelaar,
- Mariafelicia De Laurentis,
- Roger Deane,
- Jessica Dempsey,
- Gregory Desvignes,
- Jason Dexter,
- Vedant Dhruv,
- Sheperd S. Doeleman,
- Sean Dougal,
- Sergio A. Dzib,
- Ralph P. Eatough,
- Razieh Emami,
- Heino Falcke,
- Joseph Farah,
- Vincent L. Fish,
- Ed Fomalont,
- H. Alyson Ford,
- Raquel Fraga-Encinas,
- William T. Freeman,
- Per Friberg,
- Christian M. Fromm,
- Peter Galison,
- Charles F. Gammie,
- Roberto García,
- Olivier Gentaz,
- Boris Georgiev,
- Ciriaco Goddi,
- Roman Gold,
- Arturo I. Gómez-Ruiz,
- Minfeng Gu,
- Kazuhiro Hada,
- Daryl Haggard,
- Kari Haworth,
- Michael H. Hecht,
- Ronald Hesper,
- Dirk Heumann,
- Luis C. Ho,
- Paul Ho,
- Mareki Honma,
- Chih-Wei L. Huang,
- Lei Huang,
- David H. Hughes,
- Shiro Ikeda,
- C. M. Violette Impellizzeri,
- Makoto Inoue,
- David J. James,
- Buell T. Jannuzi,
- Britton Jeter,
- Wu Jiang,
- Alejandra Jiménez-Rosales,
- Abhishek V. Joshi,
- Taehyun Jung,
- Mansour Karami,
- Ramesh Karuppusamy,
- Tomohisa Kawashima,
- Garrett K. Keating,
- Mark Kettenis,
- Dong-Jin Kim,
- Jongsoo Kim,
- Junhan Kim,
- Motoki Kino,
- Jun Yi Koay,
- Prashant Kocherlakota,
- Yutaro Kofuji,
- Shoko Koyama,
- Carsten Kramer,
- Michael Kramer,
- Cheng-Yu Kuo,
- Noemi La Bella,
- Tod R. Lauer,
- Daeyoung Lee,
- Sang-Sung Lee,
- Po Kin Leung,
- Aviad Levis,
- Zhiyuan Li,
- Greg Lindahl,
- Michael Lindqvist,
- Mikhail Lisakov,
- Kuo Liu,
- Elisabetta Liuzzo,
- Wen-Ping Lo,
- Andrei P. Lobanov,
- Laurent Loinard,
- Colin J. Lonsdale,
- Nicholas R. MacDonald,
- Jirong Mao,
- Nicola Marchili,
- Sera Markoff,
- Daniel P. Marrone,
- Alan P. Marscher,
- Satoki Matsushita,
- Lynn D. Matthews,
- Lia Medeiros,
- Karl M. Menten,
- Daniel Michalik,
- Izumi Mizuno,
- Yosuke Mizuno,
- James M. Moran,
- Kotaro Moriyama,
- Cornelia Müller,
- Alejandro Mus,
- Gibwa Musoke,
- Ioannis Myserlis,
- Andrew Nadolski,
- Hiroshi Nagai,
- Neil M. Nagar,
- Masanori Nakamura,
- Ramesh Narayan,
- Gopal Narayanan,
- Iniyan Natarajan,
- Antonios Nathanail,
- Santiago Navarro Fuentes,
- Joey Neilsen,
- Roberto Neri,
- Chunchong Ni,
- Aristeidis Noutsos,
- Michael A. Nowak,
- Junghwan Oh,
- Hiroki Okino,
- Héctor Olivares,
- Gisela N. Ortiz-León,
- Tomoaki Oyama,
- Feryal Özel,
- Daniel C. M. Palumbo,
- Georgios Filippos Paraschos,
- Jongho Park,
- Harriet Parsons,
- Nimesh Patel,
- Ue-Li Pen,
- Vincent Piétu,
- Richard Plambeck,
- Aleksandar PopStefanija,
- Oliver Porth,
- Ben Prather,
- Jorge A. Preciado-López,
- Dimitrios Psaltis,
- Hung-Yi Pu,
- Ramprasad Rao,
- Mark G. Rawlings,
- Alexander W. Raymond,
- Luciano Rezzolla,
- Angelo Ricarte,
- Bart Ripperda,
- Freek Roelofs,
- Alan Rogers,
- Eduardo Ros,
- Cristina Romero-Cañizales,
- Arash Roshanineshat,
- Helge Rottmann,
- Alan L. Roy,
- Ignacio Ruiz,
- Chet Ruszczyk,
- Kazi L. J. Rygl,
- Salvador Sánchez,
- David Sánchez-Argüelles,
- Miguel Sánchez-Portal,
- Mahito Sasada,
- Kaushik Satapathy,
- Tuomas Savolainen,
- F. Peter Schloerb,
- Jonathan Schonfeld,
- Karl-Friedrich Schuster,
- Lijing Shao,
- Zhiqiang Shen,
- Des Small,
- Bong Won Sohn,
- Jason SooHoo,
- Kamal Souccar,
- He Sun,
- Fumie Tazaki,
- Alexandra J. Tetarenko,
- Paul Tiede,
- Remo P. J. Tilanus,
- Michael Titus,
- Pablo Torne,
- Tyler Trent,
- Sascha Trippe,
- Matthew Turk,
- Huib Jan van Langevelde,
- Daniel R. van Rossum,
- Jesse Vos,
- Jan Wagner,
- Derek Ward-Thompson,
- John Wardle,
- Jonathan Weintroub,
- Norbert Wex,
- Robert Wharton,
- Kaj Wiik,
- Gunther Witzel,
- Michael F. Wondrak,
- George N. Wong,
- Qingwen Wu,
- Paul Yamaguchi,
- Doosoo Yoon,
- André Young,
- Ken Young,
- Ziri Younsi,
- Feng Yuan,
- Ye-Fei Yuan,
- J. Anton Zensus,
- Shuo Zhang,
- Shan-Shan Zhao
Affiliations
- Svetlana Jorstad
- ORCiD
- Institute for Astrophysical Research, Boston University , 725 Commonwealth Avenue, Boston, MA 02215, USA ; [email protected]
- Maciek Wielgus
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Rocco Lico
- ORCiD
- Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain; INAF-Istituto di Radioastronomia , Via P. Gobetti 101, I-40129 Bologna, Italy
- Sara Issaoun
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; NASA Hubble Fellowship Program, Einstein Fellow
- Avery E. Broderick
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada; Department of Physics and Astronomy, University of Waterloo , 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada; Waterloo Centre for Astrophysics, University of Waterloo , Waterloo, ON, N2L 3G1, Canada
- Dominic W. Pesce
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Jun Liu
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Guang-Yao Zhao
- ORCiD
- Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- Thomas P. Krichbaum
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Lindy Blackburn
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Chi-kwan Chan
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA; Data Science Institute, University of Arizona , 1230 N. Cherry Avenue, Tucson, AZ 85721, USA; Program in Applied Mathematics, University of Arizona , 617 N. Santa Rita, Tucson, AZ 85721, USA
- Michael Janssen
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Venkatessh Ramakrishnan
- ORCiD
- Astronomy Department, Universidad de Concepción , Casilla 160-C, Concepción, Chile; Finnish Centre for Astronomy with ESO, FI-20014 University of Turku , Finland; Aalto University Metsähovi Radio Observatory , Metsähovintie 114, FI-02540 Kylmälä, Finland
- Kazunori Akiyama
- ORCiD
- Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA; Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA; National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Antxon Alberdi
- ORCiD
- Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- Juan Carlos Algaba
- ORCiD
- Department of Physics, Faculty of Science, Universiti Malaya , 50603 Kuala Lumpur, Malaysia
- Katherine L. Bouman
- ORCiD
- California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USA
- Ilje Cho
- ORCiD
- Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- Antonio Fuentes
- ORCiD
- Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- José L. Gómez
- ORCiD
- Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- Mark Gurwell
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Michael D. Johnson
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Jae-Young Kim
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Department of Astronomy and Atmospheric Sciences, Kyungpook National University , Daegu 702-701, Republic of Korea
- Ru-Sen Lu
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Nanjing 210008, People's Republic of China
- Iván Martí-Vidal
- ORCiD
- Departament d’Astronomia i Astrofísica, Universitat de València , C. Dr. Moliner 50, E-46100 Burjassot, València, Spain; Observatori Astronòmic, Universitat de València , C. Catedrático José Beltrán 2, E-46980 Paterna, València, Spain
- Monika Moscibrodzka
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Felix M. Pötzl
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Institute of Astrophysics , Foundation for Research and Technology—Hellas, Voutes, 7110 Heraklion, Greece
- Efthalia Traianou
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Instituto de Astrofísica de Andalucía-CSIC , Glorieta de la Astronomía s/n, E-18008 Granada, Spain
- Ilse van Bemmel
- ORCiD
- Joint Institute for VLBI ERIC (JIVE) , Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands
- Walter Alef
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Richard Anantua
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA; Department of Physics & Astronomy, The University of Texas at San Antonio , One UTSA Circle, San Antonio, TX 78249, USA
- Keiichi Asada
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Rebecca Azulay
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Departament d’Astronomia i Astrofísica, Universitat de València , C. Dr. Moliner 50, E-46100 Burjassot, València, Spain; Observatori Astronòmic, Universitat de València , C. Catedrático José Beltrán 2, E-46980 Paterna, València, Spain
- Uwe Bach
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Anne-Kathrin Baczko
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- David Ball
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Mislav Baloković
- ORCiD
- Yale Center for Astronomy & Astrophysics, Yale University , 52 Hillhouse Avenue, New Haven, CT 06511, USA
- John Barrett
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Michi Bauböck
- ORCiD
- Department of Physics, University of Illinois , 1110 West Green Street, Urbana, IL 61801, USA
- Bradford A. Benson
- ORCiD
- Fermi National Accelerator Laboratory , MS209, P.O. Box 500, Batavia, IL 60510, USA; Department of Astronomy and Astrophysics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Dan Bintley
- East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA
- Raymond Blundell
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Geoffrey C. Bower
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 645 N. A’ohoku Place, Hilo, HI 96720, USA; Department of Physics and Astronomy, University of Hawaii at Manoa , 2505 Correa Road, Honolulu, HI 96822, USA
- Hope Boyce
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; McGill Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Michael Bremer
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Christiaan D. Brinkerink
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Roger Brissenden
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Silke Britzen
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Dominique Broguiere
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Thomas Bronzwaer
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Sandra Bustamante
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Do-Young Byun
- ORCiD
- Korea Astronomy and Space Science Institute , Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea; University of Science and Technology , Gajeong-ro 217, Yuseong-gu, Daejeon 34113, Republic of Korea
- John E. Carlstrom
- ORCiD
- Department of Astronomy and Astrophysics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA; Kavli Institute for Cosmological Physics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA; Department of Physics, University of Chicago , 5720 South Ellis Avenue, Chicago, IL 60637, USA; Enrico Fermi Institute, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Chiara Ceccobello
- ORCiD
- Department of Space, Earth and Environment, Chalmers University of Technology , Onsala Space Observatory, SE-43992 Onsala, Sweden
- Andrew Chael
- ORCiD
- Princeton Gravity Initiative, Jadwin Hall, Princeton University , Princeton, NJ 08544, USA
- Koushik Chatterjee
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Shami Chatterjee
- ORCiD
- Cornell Center for Astrophysics and Planetary Science, Cornell University , Ithaca, NY 14853, USA
- Ming-Tang Chen
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 645 N. A’ohoku Place, Hilo, HI 96720, USA
- Yongjun Chen
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Nanjing 210008, People's Republic of China
- Xiaopeng Cheng
- ORCiD
- Korea Astronomy and Space Science Institute , Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea
- Pierre Christian
- ORCiD
- Physics Department, Fairfield University , 1073 North Benson Road, Fairfield, CT 06824, USA
- Nicholas S. Conroy
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Department of Astronomy, University of Illinois at Urbana-Champaign , 1002 West Green Street, Urbana, IL 61801, USA
- John E. Conway
- ORCiD
- Department of Space, Earth and Environment, Chalmers University of Technology , Onsala Space Observatory, SE-43992 Onsala, Sweden
- James M. Cordes
- ORCiD
- Cornell Center for Astrophysics and Planetary Science, Cornell University , Ithaca, NY 14853, USA
- Thomas M. Crawford
- ORCiD
- Department of Astronomy and Astrophysics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA; Kavli Institute for Cosmological Physics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Geoffrey B. Crew
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Alejandro Cruz-Osorio
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany
- Yuzhu Cui
- ORCiD
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University , Shengrong Road 520, Shanghai, 201210, People's Republic of China; Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan; Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI) , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Jordy Davelaar
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands; Department of Astronomy and Columbia Astrophysics Laboratory, Columbia University , 550 W 120th Street, New York, NY 10027, USA; Center for Computational Astrophysics, Flatiron Institute , 162 Fifth Avenue, New York, NY 10010, USA
- Mariafelicia De Laurentis
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Dipartimento di Fisica “E. Pancini,” Universitá di Napoli “Federico II,” Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy; INFN Sez. di Napoli, Compl. Univ. di Monte S. Angelo , Edificio G, Via Cinthia, I-80126, Napoli, Italy
- Roger Deane
- ORCiD
- Wits Centre for Astrophysics, University of the Witwatersrand , 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa; Department of Physics, University of Pretoria , Hatfield, Pretoria 0028, South Africa; Centre for Radio Astronomy Techniques and Technologies, Department of Physics and Electronics, Rhodes University , Makhanda 6140, South Africa
- Jessica Dempsey
- ORCiD
- East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA; ASTRON, Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands
- Gregory Desvignes
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; LESIA, Observatoire de Paris, Université PSL , CNRS, Sorbonne Université, Université de Paris, 5 place Jules Janssen, F-92195 Meudon, France
- Jason Dexter
- ORCiD
- JILA and Department of Astrophysical and Planetary Sciences, University of Colorado , Boulder, CO 80309, USA
- Vedant Dhruv
- ORCiD
- Department of Physics, University of Illinois , 1110 West Green Street, Urbana, IL 61801, USA
- Sheperd S. Doeleman
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Sean Dougal
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Sergio A. Dzib
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Ralph P. Eatough
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; National Astronomical Observatories, Chinese Academy of Sciences , 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China
- Razieh Emami
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Heino Falcke
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Joseph Farah
- ORCiD
- Las Cumbres Observatory , 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA; Department of Physics, University of California , Santa Barbara, CA 93106-9530, USA
- Vincent L. Fish
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Ed Fomalont
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA
- H. Alyson Ford
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Raquel Fraga-Encinas
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- William T. Freeman
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology , 32-D476, 77 Massachusetts Avenue, Cambridge, MA 02142, USA; Google Research, 355 Main St., Cambridge, MA 02142, USA
- Per Friberg
- ORCiD
- East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA
- Christian M. Fromm
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Institut für Theoretische Physik und Astrophysik, Universität Würzburg , Emil-Fischer-Str. 31, D-97074 Würzburg, Germany
- Peter Galison
- ORCiD
- Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA; Department of History of Science, Harvard University , Cambridge, MA 02138, USA; Department of Physics, Harvard University , Cambridge, MA 02138, USA
- Charles F. Gammie
- ORCiD
- Department of Physics, University of Illinois , 1110 West Green Street, Urbana, IL 61801, USA; Department of Astronomy, University of Illinois at Urbana-Champaign , 1002 West Green Street, Urbana, IL 61801, USA; NCSA, University of Illinois , 1205 W Clark St, Urbana, IL 61801, USA
- Roberto García
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Olivier Gentaz
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Boris Georgiev
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada; Department of Physics and Astronomy, University of Waterloo , 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada; Waterloo Centre for Astrophysics, University of Waterloo , Waterloo, ON, N2L 3G1, Canada
- Ciriaco Goddi
- ORCiD
- Universidade de Sao Paulo , Instituto de Astronomia, Geofísica e Ciencias Atmosféricas, Departamento de Astronomia, Sao Paulo, SP 05508-090, Brazil; Dipartimento di Fisica, Università degli Studi di Cagliari , SP Monserrato-Sestu km 0.7, I-09042 Monserrato, Italy; INAF—Osservatorio Astronomico di Cagliari , Via della Scienza 5, I-09047, Selargius, CA, Italy; INFN, Sezione di Cagliari, Cittadella Univ. , I-09042 Monserrato (CA), Italy
- Roman Gold
- ORCiD
- CP3-Origins, University of Southern Denmark , Campusvej 55, DK-5230 Odense M, Denmark
- Arturo I. Gómez-Ruiz
- ORCiD
- Instituto Nacional de Astrofísica , Óptica y Electrónica. Apartado Postal 51 y 216, 72000. Puebla Pue., México; Consejo Nacional de Ciencia y Tecnologìa , Av. Insurgentes Sur 1582, 03940, Ciudad de México, México
- Minfeng Gu
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China; Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences , Shanghai 200030, People's Republic of China
- Kazuhiro Hada
- ORCiD
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan; Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI) , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Daryl Haggard
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; McGill Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Kari Haworth
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Michael H. Hecht
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Ronald Hesper
- ORCiD
- NOVA Submillimeter Instrumentation Group, Kapteyn Astronomical Institute, University of Groningen , Landleven 12, 9747 AD Groningen, The Netherlands
- Dirk Heumann
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Luis C. Ho
- ORCiD
- Department of Astronomy, School of Physics, Peking University , Beijing 100871, People's Republic of China; Kavli Institute for Astronomy and Astrophysics, Peking University , Beijing 100871, People's Republic of China
- Paul Ho
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA
- Mareki Honma
- ORCiD
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan; Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI) , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Chih-Wei L. Huang
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Lei Huang
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China; Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences , Shanghai 200030, People's Republic of China
- David H. Hughes
- Instituto Nacional de Astrofísica , Óptica y Electrónica. Apartado Postal 51 y 216, 72000. Puebla Pue., México
- Shiro Ikeda
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; The Institute of Statistical Mathematics , 10-3 Midori-cho, Tachikawa, Tokyo, 190-8562, Japan; Department of Statistical Science, The Graduate University for Advanced Studies (SOKENDAI) , 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan; Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, 277-8583, Japan
- C. M. Violette Impellizzeri
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA; Leiden Observatory, Leiden University , Postbus 2300, 9513 RA Leiden, The Netherlands
- Makoto Inoue
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- David J. James
- ORCiD
- ASTRAVEO LLC, P.O. Box 1668, Gloucester, MA 01931, USA
- Buell T. Jannuzi
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Britton Jeter
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Wu Jiang
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China
- Alejandra Jiménez-Rosales
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Abhishek V. Joshi
- ORCiD
- Department of Physics, University of Illinois , 1110 West Green Street, Urbana, IL 61801, USA
- Taehyun Jung
- ORCiD
- Korea Astronomy and Space Science Institute , Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea; University of Science and Technology , Gajeong-ro 217, Yuseong-gu, Daejeon 34113, Republic of Korea
- Mansour Karami
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada; Department of Physics and Astronomy, University of Waterloo , 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
- Ramesh Karuppusamy
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Tomohisa Kawashima
- ORCiD
- Institute for Cosmic Ray Research, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan
- Garrett K. Keating
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Mark Kettenis
- ORCiD
- Joint Institute for VLBI ERIC (JIVE) , Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands
- Dong-Jin Kim
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Jongsoo Kim
- ORCiD
- Korea Astronomy and Space Science Institute , Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea
- Junhan Kim
- ORCiD
- California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USA
- Motoki Kino
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Kogakuin University of Technology & Engineering , Academic Support Center, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
- Jun Yi Koay
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Prashant Kocherlakota
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany
- Yutaro Kofuji
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan; Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Shoko Koyama
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; Niigata University , 8050 Ikarashi-nino-cho, Nishi-ku, Niigata 950-2181, Japan
- Carsten Kramer
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Michael Kramer
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Cheng-Yu Kuo
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; Physics Department, National Sun Yat-Sen University , No. 70, Lien-Hai Road, Kaosiung City 80424, Taiwan, R.O.C.
- Noemi La Bella
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Tod R. Lauer
- ORCiD
- National Optical Astronomy Observatory , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Daeyoung Lee
- ORCiD
- Department of Physics, University of Illinois , 1110 West Green Street, Urbana, IL 61801, USA
- Sang-Sung Lee
- ORCiD
- Korea Astronomy and Space Science Institute , Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea
- Po Kin Leung
- ORCiD
- Department of Physics, The Chinese University of Hong Kong , Shatin, N.T., Hong Kong
- Aviad Levis
- ORCiD
- California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USA
- Zhiyuan Li
- ORCiD
- School of Astronomy and Space Science, Nanjing University , Nanjing 210023, People's Republic of China; Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University , Nanjing 210023, People's Republic of China
- Greg Lindahl
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Michael Lindqvist
- ORCiD
- Department of Space, Earth and Environment, Chalmers University of Technology , Onsala Space Observatory, SE-43992 Onsala, Sweden
- Mikhail Lisakov
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Kuo Liu
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Elisabetta Liuzzo
- ORCiD
- INAF-Istituto di Radioastronomia & Italian ALMA Regional Centre , Via P. Gobetti 101, I-40129 Bologna, Italy
- Wen-Ping Lo
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; Department of Physics, National Taiwan University , No. 1, Sect. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Andrei P. Lobanov
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Laurent Loinard
- ORCiD
- Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México , Morelia 58089, México; Instituto de Astronomía, Universidad Nacional Autónoma de México (UNAM) , Apdo Postal 70-264, Ciudad de México, México
- Colin J. Lonsdale
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Nicholas R. MacDonald
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Jirong Mao
- ORCiD
- Yunnan Observatories, Chinese Academy of Sciences , 650011 Kunming, Yunnan Province, People's Republic of China; Center for Astronomical Mega-Science, Chinese Academy of Sciences , 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China; Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences , 650011 Kunming, People's Republic of China
- Nicola Marchili
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; INAF-Istituto di Radioastronomia & Italian ALMA Regional Centre , Via P. Gobetti 101, I-40129 Bologna, Italy
- Sera Markoff
- ORCiD
- Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1098 XH, Amsterdam, The Netherlands; Gravitation and Astroparticle Physics Amsterdam (GRAPPA) Institute, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
- Daniel P. Marrone
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Alan P. Marscher
- ORCiD
- Institute for Astrophysical Research, Boston University , 725 Commonwealth Avenue, Boston, MA 02215, USA ; [email protected]
- Satoki Matsushita
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Lynn D. Matthews
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Lia Medeiros
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA; NSF Astronomy and Astrophysics Postdoctoral Fellow; School of Natural Sciences, Institute for Advanced Study , 1 Einstein Drive, Princeton, NJ 08540, USA
- Karl M. Menten
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Daniel Michalik
- ORCiD
- Department of Astronomy and Astrophysics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA; Science Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC) , Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
- Izumi Mizuno
- ORCiD
- East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA
- Yosuke Mizuno
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Tsung-Dao Lee Institute, Shanghai Jiao Tong University , Shengrong Road 520, Shanghai, 201210, People's Republic of China; School of Physics and Astronomy, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
- James M. Moran
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Kotaro Moriyama
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA; Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
- Cornelia Müller
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Alejandro Mus
- ORCiD
- Departament d’Astronomia i Astrofísica, Universitat de València , C. Dr. Moliner 50, E-46100 Burjassot, València, Spain; Observatori Astronòmic, Universitat de València , C. Catedrático José Beltrán 2, E-46980 Paterna, València, Spain
- Gibwa Musoke
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands; Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1098 XH, Amsterdam, The Netherlands
- Ioannis Myserlis
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
- Andrew Nadolski
- ORCiD
- Department of Astronomy, University of Illinois at Urbana-Champaign , 1002 West Green Street, Urbana, IL 61801, USA
- Hiroshi Nagai
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI) , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Neil M. Nagar
- ORCiD
- Astronomy Department, Universidad de Concepción , Casilla 160-C, Concepción, Chile
- Masanori Nakamura
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; National Institute of Technology , Hachinohe College, 16-1 Uwanotai, Tamonoki, Hachinohe City, Aomori 039-1192, Japan
- Ramesh Narayan
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Gopal Narayanan
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Iniyan Natarajan
- ORCiD
- Wits Centre for Astrophysics, University of the Witwatersrand , 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa; South African Radio Astronomy Observatory , Observatory 7925, Cape Town, South Africa
- Antonios Nathanail
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Department of Physics, National and Kapodistrian University of Athens , Panepistimiopolis, GR 15783 Zografos, Greece
- Santiago Navarro Fuentes
- Institut de Radioastronomie Millimétrique (IRAM) , Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
- Joey Neilsen
- ORCiD
- Department of Physics, Villanova University , 800 Lancaster Avenue, Villanova, PA 19085, USA
- Roberto Neri
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Chunchong Ni
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada; Department of Physics and Astronomy, University of Waterloo , 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada; Waterloo Centre for Astrophysics, University of Waterloo , Waterloo, ON, N2L 3G1, Canada
- Aristeidis Noutsos
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Michael A. Nowak
- ORCiD
- Physics Department, Washington University CB 1105 , St Louis, MO 63130, USA
- Junghwan Oh
- ORCiD
- Sejong University , 209 Neungdong-ro, Gwangjin-gu, Seoul, Republic of Korea
- Hiroki Okino
- ORCiD
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan; Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Héctor Olivares
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Gisela N. Ortiz-León
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Instituto de Astronomía, Universidad Nacional Autónoma de México (UNAM) , Apdo Postal 70-264, Ciudad de México, México
- Tomoaki Oyama
- ORCiD
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
- Feryal Özel
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Daniel C. M. Palumbo
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Georgios Filippos Paraschos
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Jongho Park
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; EACOA Fellow
- Harriet Parsons
- ORCiD
- East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA
- Nimesh Patel
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Ue-Li Pen
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada; Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; Canadian Institute for Theoretical Astrophysics, University of Toronto , 60 St. George Street, Toronto, ON, M5S 3H8, Canada; Dunlap Institute for Astronomy and Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON, M5S 3H4, Canada; Canadian Institute for Advanced Research , 180 Dundas Street West, Toronto, ON, M5G 1Z8, Canada
- Vincent Piétu
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Richard Plambeck
- ORCiD
- Radio Astronomy Laboratory, University of California , Berkeley, CA 94720, USA
- Aleksandar PopStefanija
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Oliver Porth
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1098 XH, Amsterdam, The Netherlands
- Ben Prather
- ORCiD
- Department of Physics, University of Illinois , 1110 West Green Street, Urbana, IL 61801, USA
- Jorge A. Preciado-López
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada
- Dimitrios Psaltis
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Hung-Yi Pu
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.; Department of Physics, National Taiwan Normal University , No. 88, Sec.4, Tingzhou Road, Taipei 116, Taiwan, R.O.C.; Center of Astronomy and Gravitation, National Taiwan Normal University , No. 88, Sec. 4, Tingzhou Road, Taipei 116, Taiwan, R.O.C.
- Ramprasad Rao
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Mark G. Rawlings
- ORCiD
- East Asian Observatory , 660 N. A’ohoku Place, Hilo, HI 96720, USA; James Clerk Maxwell Telescope (JCMT) , 660 N. A’ohoku Place, Hilo, HI 96720, USA; Gemini Observatory/NSF NOIRLab , 670 N. A’ohoku Place, Hilo, HI 96720, USA
- Alexander W. Raymond
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Luciano Rezzolla
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Frankfurt Institute for Advanced Studies , Ruth-Moufang-Strasse 1, D-60438 Frankfurt, Germany; School of Mathematics, Trinity College , Dublin 2, Ireland
- Angelo Ricarte
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Bart Ripperda
- ORCiD
- NASA Hubble Fellowship Program, Einstein Fellow; Center for Computational Astrophysics, Flatiron Institute , 162 Fifth Avenue, New York, NY 10010, USA; School of Natural Sciences, Institute for Advanced Study , 1 Einstein Drive, Princeton, NJ 08540, USA; Department of Astrophysical Sciences, Peyton Hall, Princeton University , Princeton, NJ 08544, USA
- Freek Roelofs
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA; Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Alan Rogers
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Eduardo Ros
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Cristina Romero-Cañizales
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
- Arash Roshanineshat
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Helge Rottmann
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Alan L. Roy
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Ignacio Ruiz
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
- Chet Ruszczyk
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Kazi L. J. Rygl
- ORCiD
- INAF-Istituto di Radioastronomia & Italian ALMA Regional Centre , Via P. Gobetti 101, I-40129 Bologna, Italy
- Salvador Sánchez
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
- David Sánchez-Argüelles
- ORCiD
- Instituto Nacional de Astrofísica , Óptica y Electrónica. Apartado Postal 51 y 216, 72000. Puebla Pue., México; Consejo Nacional de Ciencia y Tecnologìa , Av. Insurgentes Sur 1582, 03940, Ciudad de México, México
- Miguel Sánchez-Portal
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
- Mahito Sasada
- ORCiD
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan; Department of Physics, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan; Hiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
- Kaushik Satapathy
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Tuomas Savolainen
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Aalto University Metsähovi Radio Observatory , Metsähovintie 114, FI-02540 Kylmälä, Finland; Aalto University Department of Electronics and Nanoengineering , PL 15500, FI-00076 Aalto, Finland
- F. Peter Schloerb
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Jonathan Schonfeld
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Karl-Friedrich Schuster
- ORCiD
- Institut de Radioastronomie Millimétrique (IRAM) , 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
- Lijing Shao
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Kavli Institute for Astronomy and Astrophysics, Peking University , Beijing 100871, People's Republic of China
- Zhiqiang Shen
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences , Nanjing 210008, People's Republic of China
- Des Small
- ORCiD
- Joint Institute for VLBI ERIC (JIVE) , Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands
- Bong Won Sohn
- ORCiD
- Korea Astronomy and Space Science Institute , Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea; University of Science and Technology , Gajeong-ro 217, Yuseong-gu, Daejeon 34113, Republic of Korea; Department of Astronomy, Yonsei University , Yonsei-ro 50, Seodaemun-gu, 03722 Seoul, Republic of Korea
- Jason SooHoo
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Kamal Souccar
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- He Sun
- ORCiD
- California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USA
- Fumie Tazaki
- ORCiD
- Mizusawa VLBI Observatory, National Astronomical Observatory of Japan , 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
- Alexandra J. Tetarenko
- ORCiD
- NASA Hubble Fellowship Program, Einstein Fellow; Department of Physics and Astronomy, Texas Tech University , Lubbock, TX 79409-1051, USA
- Paul Tiede
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Remo P. J. Tilanus
- ORCiD
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA; Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands; Leiden Observatory, Leiden University , Postbus 2300, 9513 RA Leiden, The Netherlands; Netherlands Organisation for Scientific Research (NWO) , Postbus 93138, 2509 AC Den Haag, The Netherlands
- Michael Titus
- ORCiD
- Massachusetts Institute of Technology Haystack Observatory , 99 Millstone Road, Westford, MA 01886, USA
- Pablo Torne
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]; Institut de Radioastronomie Millimétrique (IRAM) , Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
- Tyler Trent
- Steward Observatory and Department of Astronomy, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Sascha Trippe
- ORCiD
- Department of Physics and Astronomy, Seoul National University , Gwanak-gu, Seoul 08826, Republic of Korea
- Matthew Turk
- ORCiD
- Department of Astronomy, University of Illinois at Urbana-Champaign , 1002 West Green Street, Urbana, IL 61801, USA
- Huib Jan van Langevelde
- ORCiD
- Joint Institute for VLBI ERIC (JIVE) , Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands; Leiden Observatory, Leiden University , Postbus 2300, 9513 RA Leiden, The Netherlands; University of New Mexico , Department of Physics and Astronomy, Albuquerque, NM 87131, USA
- Daniel R. van Rossum
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Jesse Vos
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Jan Wagner
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Derek Ward-Thompson
- ORCiD
- Jeremiah Horrocks Institute, University of Central Lancashire , Preston PR1 2HE, UK
- John Wardle
- ORCiD
- Physics Department, Brandeis University , 415 South Street, Waltham, MA 02453, USA
- Jonathan Weintroub
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA; Black Hole Initiative at Harvard University , 20 Garden Street, Cambridge, MA 02138, USA
- Norbert Wex
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Robert Wharton
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Kaj Wiik
- ORCiD
- Tuorla Observatory, Department of Physics and Astronomy, University of Turku , Finland
- Gunther Witzel
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Michael F. Wondrak
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands; Radboud Excellence Fellow of Radboud University , Nijmegen, The Netherlands
- George N. Wong
- ORCiD
- School of Natural Sciences, Institute for Advanced Study , 1 Einstein Drive, Princeton, NJ 08540, USA; Princeton Gravity Initiative, Princeton University , Princeton, NJ 08544, USA
- Qingwen Wu
- ORCiD
- School of Physics, Huazhong University of Science and Technology , Wuhan, Hubei, 430074, People's Republic of China
- Paul Yamaguchi
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Doosoo Yoon
- ORCiD
- Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1098 XH, Amsterdam, The Netherlands
- André Young
- ORCiD
- Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University , P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
- Ken Young
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Ziri Younsi
- ORCiD
- Institut für Theoretische Physik, Goethe-Universität Frankfurt , Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany; Mullard Space Science Laboratory, University College London , Holmbury St. Mary, Dorking, Surrey, RH5 6NT, UK
- Feng Yuan
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China; Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences , Shanghai 200030, People's Republic of China; School of Astronomy and Space Sciences, University of Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing 100049, People's Republic of China
- Ye-Fei Yuan
- ORCiD
- Astronomy Department, University of Science and Technology of China , Hefei 230026, People's Republic of China
- J. Anton Zensus
- ORCiD
- Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany ; [email protected]
- Shuo Zhang
- ORCiD
- Bard College , 30 Campus Road, Annandale-on-Hudson, NY 12504, USA
- Shan-Shan Zhao
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China
- DOI
- https://doi.org/10.3847/1538-4357/acaea8
- Journal volume & issue
-
Vol. 943,
no. 2
p. 170
Abstract
We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z = 0.902, this is the most distant object imaged by the EHT so far. We reconstruct the first images of the source at 230 GHz, at an unprecedented angular resolution of ∼20 μ as, both in total intensity and in linear polarization (LP). We do not detect source variability, allowing us to represent the whole data set with static images. The images reveal a bright feature located on the southern end of the jet, which we associate with the core. The feature is linearly polarized, with a fractional polarization of ∼5%–8%, and it has a substructure consisting of two components. Their observed brightness temperature suggests that the energy density of the jet is dominated by the magnetic field. The jet extends over 60 μ as along a position angle ∼ −28°. It includes two features with orthogonal directions of polarization (electric vector position angle), parallel and perpendicular to the jet axis, consistent with a helical structure of the magnetic field in the jet. The outermost feature has a particularly high degree of LP, suggestive of a nearly uniform magnetic field. Future EHT observations will probe the variability of the jet structure on microarcsecond scales, while simultaneous multiwavelength monitoring will provide insight into the high-energy emission origin.
Keywords
