The Astrophysical Journal Letters (Jan 2025)
The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. III. Aperture Masking Interferometric Observations of the Star HIP 65426 at 3.8 μm
- Shrishmoy Ray,
- Steph Sallum,
- Sasha Hinkley,
- Anand Sivaramkrishnan,
- Rachel Cooper,
- Jens Kammerer,
- Alexandra Z. Greebaum,
- Deeparshi Thatte,
- Tomas Stolker,
- Cecilia Lazzoni,
- Andrei Tokovinin,
- Matthew de Furio,
- Samuel Factor,
- Michael Meyer,
- Jordan M. Stone,
- Aarynn Carter,
- Beth Biller,
- Andrew Skemer,
- Genaro Suárez,
- Jarron M. Leisenring,
- Marshall D. Perrin,
- Adam L. Kraus,
- Olivier Absil,
- William O. Balmer,
- Anthony Boccaletti,
- Mariangela Bonavita,
- Mickael Bonnefoy,
- Mark Booth,
- Brendan P. Bowler,
- Zackery W. Briesemeister,
- Marta L. Bryan,
- Per Calissendorff,
- Faustine Cantalloube,
- Gael Chauvin,
- Christine H. Chen,
- Elodie Choquet,
- Valentin Christiaens,
- Gabriele Cugno,
- Thayne Currie,
- Camilla Danielski,
- Trent J. Dupuy,
- Jacqueline K. Faherty,
- Michael P. Fitzgerald,
- Jonathan J. Fortney,
- Kyle Franson,
- Julien H. Girard,
- Carol A. Grady,
- Eileen C. Gonzales,
- Thomas Henning,
- Dean C. Hines,
- Kielan K. W. Hoch,
- Callie E. Hood,
- Alex R. Howe,
- Markus Janson,
- Paul Kalas,
- Grant M. Kennedy,
- Matthew A. Kenworthy,
- Pierre Kervella,
- Masayuki Kuzuhara,
- Anne-Marie Lagrange,
- Pierre-Olivier Lagage,
- Kellen Lawson,
- Ben W. P. Lew,
- Michael C. Liu,
- Pengyu Liu,
- Jorge Llop-Sayson,
- James P. Lloyd,
- Bruce Macintosh,
- Sebastian Marino,
- Mark S. Marley,
- Christian Marois,
- Raquel A. Martinez,
- Brenda C. Matthews,
- Elisabeth C. Matthews,
- Dimitri Mawet,
- Johan Mazoyer,
- Michael W. McElwain,
- Stanimir Metchev,
- Michael R. Meyer,
- Brittany E. Miles,
- Maxwell A. Millar-Blanchaer,
- Paul Molliere,
- Sarah E. Moran,
- Caroline V. Morley,
- Sagnick Mukherjee,
- Paulina Palma-Bifani,
- Eric Pantin,
- Polychronis Patapis,
- Simon Petrus,
- Laurent Pueyo,
- Sascha P. Quanz,
- Andreas Quirrenbach,
- Isabel Rebollido,
- Jea Adams Redai,
- Bin B. Ren,
- Emily Rickman,
- Matthias Samland,
- Joshua E. Schlieder,
- Glenn Schneider,
- Karl R. Stapelfeldt,
- Motohide Tamura,
- Xianyu Tan,
- Taichi Uyama,
- Arthur Vigan,
- Malavika Vasist,
- Johanna M. Vos,
- Kevin Wagner,
- Jason J. Wang,
- Kimberly Ward-Duong,
- Niall Whiteford,
- Schuyler G. Wolff,
- Kadin Worthen,
- Mark C. Wyatt,
- Marie Ygouf,
- Xi Zhang,
- Keming Zhang,
- Zhoujian Zhang,
- Yifan Zhou,
- Alice Zurlo,
- B. A. Sargent,
- Christopher A. Theissen,
- Elena Manjavacas,
- Anna Lueber,
- Daniel Kitzmann,
- Ben J. Sutlieff,
- Sarah K. Betti
Affiliations
- Shrishmoy Ray
- ORCiD
- School of Mathematics and Physics, University of Queensland , St Lucia, QLD 4072, Australia; University of Exeter , Astrophysics Group, Physics Building, Stocker Road, Exeter, EX4 4QL, UK
- Steph Sallum
- ORCiD
- Department of Physics and Astronomy, University of California , Irvine, 4129 Frederick Reines Hall, Irvine, CA 92697-4575, USA
- Sasha Hinkley
- ORCiD
- University of Exeter , Astrophysics Group, Physics Building, Stocker Road, Exeter, EX4 4QL, UK
- Anand Sivaramkrishnan
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Rachel Cooper
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Jens Kammerer
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Alexandra Z. Greebaum
- ORCiD
- IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
- Deeparshi Thatte
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Tomas Stolker
- ORCiD
- Leiden Observatory, Leiden University , Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
- Cecilia Lazzoni
- ORCiD
- University of Exeter , Astrophysics Group, Physics Building, Stocker Road, Exeter, EX4 4QL, UK
- Andrei Tokovinin
- ORCiD
- Cerro Tololo Inter-American Observatory , CTIO/AURA Inc., Casilla 603, La Serena, Chile
- Matthew de Furio
- Department of Astronomy, University of Michigan , 1085 S. University, Ann Arbor, MI 48109, USA
- Samuel Factor
- ORCiD
- Department of Astronomy, University of Texas at Austin , 2515 Speedway Stop C1400, Austin, TX 78712, USA
- Michael Meyer
- Department of Astronomy, University of Michigan , 1085 S. University, Ann Arbor, MI 48109, USA
- Jordan M. Stone
- ORCiD
- Naval Research Laboratory , Remote Sensing Division, 4555 Overlook Ave SW, WA, DC 20375, USA
- Aarynn Carter
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Beth Biller
- ORCiD
- Scottish Universities Physics Alliance, Institute for Astronomy, University of Edinburgh , Blackford Hill, Edinburgh, EH9 3HJ, UK; Centre for Exoplanet Science, University of Edinburgh , Edinburgh EH9 3HJ, UK
- Andrew Skemer
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Genaro Suárez
- ORCiD
- Department of Astrophysics , American Museum of Natural History, Central Park West at 79th Street, NY 10024, USA
- Jarron M. Leisenring
- ORCiD
- Steward Observatory and the Department of Astronomy, The University of Arizona , 933 N Cherry Ave, Tucson, AZ 85721, USA
- Marshall D. Perrin
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Adam L. Kraus
- ORCiD
- Department of Astronomy, University of Texas at Austin , 2515 Speedway Stop C1400, Austin, TX 78712, USA
- Olivier Absil
- ORCiD
- Space sciences, Technologies & Astrophysics Research (STAR) Institute, Université de Liège , Allée du Six Août 19c, B-4000 Sart Tilman, Belgium
- William O. Balmer
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics & Astronomy, Johns Hopkins University , 3400 N. Charles Street, Baltimore, MD 21218, USA
- Anthony Boccaletti
- ORCiD
- LESIA, Observatoire de Paris, Université PSL, CNRS, Université Paris Cité, Sorbonne Université , 5 place Jules Janssen, 92195 Meudon, France
- Mariangela Bonavita
- ORCiD
- School of Physical Sciences, Faculty of Science, Technology, Engineering and Mathematics, The Open University , Walton Hall, Milton Keynes, MK7 6AA, UK
- Mickael Bonnefoy
- ORCiD
- Université Grenoble Alpes , Institut de Planétologie et d’Astrophysique (IPAG), F-38000 Grenoble, France
- Mark Booth
- ORCiD
- Astrophysikalisches Institut und Universitätssternwarte , Friedrich-Schiller-Universität Jena, Schillergäßchen 2-3, D-07745 Jena, Germany
- Brendan P. Bowler
- ORCiD
- Department of Astronomy, University of Texas at Austin , 2515 Speedway Stop C1400, Austin, TX 78712, USA
- Zackery W. Briesemeister
- ORCiD
- NASA-Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- Marta L. Bryan
- ORCiD
- Department of Astronomy, 501 Campbell Hall, University of California Berkeley , Berkeley, CA 94720-3411, USA
- Per Calissendorff
- ORCiD
- Department of Astronomy, University of Michigan , 1085 S. University, Ann Arbor, MI 48109, USA
- Faustine Cantalloube
- ORCiD
- Aix Marseille Univ , CNRS, CNES, LAM, 13013 Marseille, France
- Gael Chauvin
- ORCiD
- Laboratoire J.-L. Lagrange, Université Cote d’Azur , CNRS, Observatoire de la Cote d’Azur, 06304 Nice, France
- Christine H. Chen
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics & Astronomy, Johns Hopkins University , 3400 N. Charles Street, Baltimore, MD 21218, USA
- Elodie Choquet
- ORCiD
- Aix Marseille Univ , CNRS, CNES, LAM, 13013 Marseille, France
- Valentin Christiaens
- ORCiD
- Space sciences, Technologies & Astrophysics Research (STAR) Institute, Université de Liège , Allée du Six Août 19c, B-4000 Sart Tilman, Belgium
- Gabriele Cugno
- ORCiD
- Department of Astronomy, University of Michigan , 1085 S. University, Ann Arbor, MI 48109, USA
- Thayne Currie
- ORCiD
- Department of Physics and Astronomy, University of Texas-San Antonio , 1 UTSA Circle, San Antonio, TX78249, USA; Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohōkū Place, Hilo, HI 96720, USA
- Camilla Danielski
- ORCiD
- Instituto de Astrofísica de Andalucía , CSIC, Glorieta de la Astronomía s/n, 18008, Granada, Spain
- Trent J. Dupuy
- ORCiD
- Institute for Astronomy, University of Edinburgh , Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, UK
- Jacqueline K. Faherty
- ORCiD
- Department of Astrophysics , American Museum of Natural History, Central Park West at 79th Street, NY 10024, USA
- Michael P. Fitzgerald
- ORCiD
- University of California , Los Angeles, 430 Portola Plaza Box 951547, Los Angeles, CA 90095-1547, USA
- Jonathan J. Fortney
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Kyle Franson
- ORCiD
- Department of Astronomy, University of Texas at Austin , 2515 Speedway Stop C1400, Austin, TX 78712, USA
- Julien H. Girard
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Carol A. Grady
- Eureka Scientific , 2452 Delmer. St., Suite 1, Oakland, CA 96402, USA
- Eileen C. Gonzales
- ORCiD
- Department of Astronomy and Carl Sagan Institute, Cornell University , 122 Sciences Drive, Ithaca, NY 14853, USA
- Thomas Henning
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, 69117 Heidelberg, Germany
- Dean C. Hines
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Kielan K. W. Hoch
- ORCiD
- Center for Astrophysics and Space Sciences, University of California , San Diego, La Jolla, CA 92093, USA
- Callie E. Hood
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Alex R. Howe
- ORCiD
- NASA-Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- Markus Janson
- ORCiD
- Department of Astronomy, Stockholm University , AlbaNova University Center, SE-10691 Stockholm, Sweden
- Paul Kalas
- ORCiD
- Department of Astronomy, 501 Campbell Hall, University of California Berkeley , Berkeley, CA 94720-3411, USA; SETI Institute , Carl Sagan Center, 189 Bernardo Ave, Mountain View, CA 94043, USA; Institute of Astrophysics , FORTH, GR-71110 Heraklion, Greece
- Grant M. Kennedy
- ORCiD
- Department of Physics, University of Warwick , Gibbet Hill Road, Coventry, CV4 7AL, UK
- Matthew A. Kenworthy
- ORCiD
- Leiden Observatory, Leiden University , P.O. Box 9513, 2300 RA Leiden, The Netherlands
- Pierre Kervella
- ORCiD
- LESIA, Observatoire de Paris, Université PSL, CNRS, Université Paris Cité, Sorbonne Université , 5 place Jules Janssen, 92195 Meudon, France
- Masayuki Kuzuhara
- ORCiD
- Astrobiology Center of NINS , 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
- Anne-Marie Lagrange
- LESIA, Observatoire de Paris, Université PSL, CNRS, Université Paris Cité, Sorbonne Université , 5 place Jules Janssen, 92195 Meudon, France
- Pierre-Olivier Lagage
- Université Paris-Saclay , Université Paris Cité, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France
- Kellen Lawson
- ORCiD
- NASA-Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- Ben W. P. Lew
- ORCiD
- Bay Area Environmental Research Institute and NASA Ames Research Center , Moffett Field, CA 94035, USA
- Michael C. Liu
- ORCiD
- Institute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822, USA
- Pengyu Liu
- ORCiD
- Scottish Universities Physics Alliance , Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh, EH9 3HJ, UK; Centre for Exoplanet Science, University of Edinburgh, Edinburgh, EH9 3HJ, UK
- Jorge Llop-Sayson
- ORCiD
- Department of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA
- James P. Lloyd
- Department of Astronomy and Carl Sagan Institute, Cornell University , 122 Sciences Drive, Ithaca, NY 14853, USA
- Bruce Macintosh
- ORCiD
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University , Stanford, CA 94305, USA
- Sebastian Marino
- ORCiD
- Jesus College, University of Cambridge , Jesus Lane, Cambridge, CB5 8BL, UK; Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge, CB3 0HA, UK
- Mark S. Marley
- ORCiD
- Dept. of Planetary Sciences, Lunar & Planetary Laboratory, University of Arizona , Tucson, AZ 85721, USA
- Christian Marois
- ORCiD
- National Research Council of Canada , Canada
- Raquel A. Martinez
- ORCiD
- Department of Physics and Astronomy, 4129 Frederick Reines Hall, University of California , Irvine, CA 92697, USA
- Brenda C. Matthews
- ORCiD
- Herzberg Astronomy & Astrophysics Research Centre , National Research Council of Canada, 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada
- Elisabeth C. Matthews
- ORCiD
- Observatoire de l’Université de Genève , Chemin Pegasi 51, 1290 Versoix, Switzerland
- Dimitri Mawet
- ORCiD
- Department of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Johan Mazoyer
- ORCiD
- LESIA, Observatoire de Paris, Université PSL, CNRS, Université Paris Cité, Sorbonne Université , 5 place Jules Janssen, 92195 Meudon, France
- Michael W. McElwain
- ORCiD
- NASA-Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- Stanimir Metchev
- ORCiD
- Western University , Department of Physics & Astronomy and Institute for Earth and Space Exploration, 1151 Richmond Street, London, Ontario, N6A 3K7, Canada
- Michael R. Meyer
- ORCiD
- Department of Astronomy, University of Michigan , 1085 S. University, Ann Arbor, MI 48109, USA
- Brittany E. Miles
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Maxwell A. Millar-Blanchaer
- ORCiD
- Department of Physics, University of California , Santa Barbara, CA 93106, USA
- Paul Molliere
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, 69117 Heidelberg, Germany
- Sarah E. Moran
- ORCiD
- Dept. of Planetary Sciences, Lunar & Planetary Laboratory, University of Arizona , Tucson, AZ 85721, USA
- Caroline V. Morley
- ORCiD
- Department of Astronomy, University of Texas at Austin , 2515 Speedway Stop C1400, Austin, TX 78712, USA
- Sagnick Mukherjee
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Paulina Palma-Bifani
- ORCiD
- Laboratoire J.-L. Lagrange, Université Cote d’Azur , CNRS, Observatoire de la Cote d’Azur, 06304 Nice, France
- Eric Pantin
- ORCiD
- IRFU/DAp Département D’Astrophysique CE Saclay , Gif-sur-Yvette, France
- Polychronis Patapis
- ORCiD
- Institute of Particle Physics and Astrophysics , ETH Zurich, Wolfgang-Pauli-Str. 27, 8093 Zurich, Switzerland
- Simon Petrus
- ORCiD
- Instituto de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso , Av. Gran Bretaña 1111, Valparaíso, Chile; Núcleo Milenio Formacíon Planetaria—NPF, Universidad de Valparaíso , Av. Gran Bretaña 1111, Valparaíso, Chile
- Laurent Pueyo
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Sascha P. Quanz
- ORCiD
- Institute of Particle Physics and Astrophysics , ETH Zurich, Wolfgang-Pauli-Str. 27, 8093 Zurich, Switzerland
- Andreas Quirrenbach
- Landessternwarte, Zentrum für Astronomie der Universität Heidelberg , Königstuhl 12, D-69117 Heidelberg, Germany
- Isabel Rebollido
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Jea Adams Redai
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Bin B. Ren
- ORCiD
- Université Grenoble Alpes , Institut de Planétologie et d’Astrophysique (IPAG), F-38000 Grenoble, France
- Emily Rickman
- ORCiD
- European Space Agency (ESA), ESA Office, Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Matthias Samland
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, 69117 Heidelberg, Germany
- Joshua E. Schlieder
- ORCiD
- NASA-Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- Glenn Schneider
- Steward Observatory and the Department of Astronomy, The University of Arizona , 933 N Cherry Ave, Tucson, AZ 85721, USA
- Karl R. Stapelfeldt
- ORCiD
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Motohide Tamura
- ORCiD
- The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Xianyu Tan
- ORCiD
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University , 520 Shengrong Road, Shanghai, People’s Republic of China
- Taichi Uyama
- ORCiD
- IPAC , California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125, USA
- Arthur Vigan
- ORCiD
- Aix Marseille Univ , CNRS, CNES, LAM, 13013 Marseille, France
- Malavika Vasist
- ORCiD
- Space sciences, Technologies & Astrophysics Research (STAR) Institute, Université de Liège , Allée du Six Août 19c, B-4000 Sart Tilman, Belgium
- Johanna M. Vos
- ORCiD
- School of Physics, Trinity College Dublin, The University of Dublin , Dublin 2, Ireland; Department of Astrophysics , American Museum of Natural History, New York, NY 10024, USA
- Kevin Wagner
- ORCiD
- Steward Observatory and the Department of Astronomy, The University of Arizona , 933 N Cherry Ave, Tucson, AZ 85721, USA
- Jason J. Wang
- ORCiD
- Department of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University , Evanston, IL 60208, USA
- Kimberly Ward-Duong
- ORCiD
- Department of Astronomy , Smith College, Northampton, MA 01063, USA
- Niall Whiteford
- ORCiD
- Department of Astrophysics , American Museum of Natural History, Central Park West at 79th Street, NY 10024, USA
- Schuyler G. Wolff
- ORCiD
- Steward Observatory and the Department of Astronomy, The University of Arizona , 933 N Cherry Ave, Tucson, AZ 85721, USA
- Kadin Worthen
- ORCiD
- Department of Physics & Astronomy, Johns Hopkins University , 3400 N. Charles Street, Baltimore, MD 21218, USA
- Mark C. Wyatt
- ORCiD
- Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge, CB3 0HA, UK
- Marie Ygouf
- ORCiD
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Xi Zhang
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
- Keming Zhang
- ORCiD
- Department of Astronomy, 501 Campbell Hall, University of California Berkeley , Berkeley, CA 94720-3411, USA
- Zhoujian Zhang
- ORCiD
- Department of Astronomy & Astrophysics, University of California , Santa Cruz, CA 95064, USA
- Yifan Zhou
- ORCiD
- Department of Astronomy, University of Texas at Austin , 2515 Speedway Stop C1400, Austin, TX 78712, USA
- Alice Zurlo
- ORCiD
- Instituto de Estudios Astrofísicos , Facultad de Ingeniería y Ciencias,Universidad Diego Portales, Av. Ejército Libertador 441, Santiago, Chile
- B. A. Sargent
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Center for Astrophysical Sciences, The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Christopher A. Theissen
- ORCiD
- Department of Astronomy & Astrophysics, University of California , San Diego, La Jolla, CA 92093, USA
- Elena Manjavacas
- ORCiD
- AURA for the European Space Agency (ESA), ESA Office, Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Anna Lueber
- ORCiD
- Ludwig Maximilian University , University Observatory Munich, Scheinerstrasse 1, Munich D-81679, Germany
- Daniel Kitzmann
- ORCiD
- Center for Space and Habitability, University of Bern , Gesellschaftsstrasse. 6, 3012 Bern, Switzerland
- Ben J. Sutlieff
- ORCiD
- Scottish Universities Physics Alliance, Institute for Astronomy, University of Edinburgh , Blackford Hill, Edinburgh, EH9 3HJ, UK; Centre for Exoplanet Science, University of Edinburgh , Edinburgh, EH9 3HJ, UK
- Sarah K. Betti
- ORCiD
- Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
- DOI
- https://doi.org/10.3847/2041-8213/adaeb7
- Journal volume & issue
-
Vol. 983,
no. 1
p. L25
Abstract
We present aperture masking interferometry (AMI) observations of the star HIP 65426 at 3.8 μ m, as part of the JWST Direct Imaging Early Release Science program, obtained using the Near Infrared Imager and Slitless Spectrograph instrument. This mode provides access to very small inner working angles (even separations slightly below the Michelson limit of 0.5 λ / D for an interferometer), which are inaccessible with the classical inner working angles of the JWST coronagraphs. When combined with JWST’s unprecedented infrared sensitivity, this mode has the potential to probe a new portion of parameter space across a wide array of astronomical observations. Using this mode, we are able to achieve a 5 σ contrast of Δ m _F380M ∼ 7.62 ± 0.13 mag relative to the host star at separations ≳0 $\mathop{.}\limits^{\unicode{x02033}}$ 07 , and the contrast deteriorates steeply at separations ≲0 $\mathop{.}\limits^{\unicode{x02033}}$ 07. However, we detect no additional companions interior to the known companion HIP 65426b (at separation ∼0 $\mathop{.}\limits^{\unicode{x02033}}$ 82 or $8{7}_{-31}^{+108}\,{\rm{au}}$ ). Our observations thus rule out companions more massive than 10–12 M _Jup at separations ∼10–20 au from HIP 65426, a region out of reach of ground- or space-based coronagraphic imaging. These observations confirm that the AMI mode on JWST is sensitive to planetary mass companions at close-in separations (≳0 $\mathop{.}\limits^{\unicode{x02033}}$ 07), even for thousands of more distant stars at ∼100 pc, in addition to the stars in the nearby young moving groups and associations, as stated in previous works. This result will allow the planning and successful execution of future observations to probe the inner regions of nearby stellar systems, opening an essentially unexplored parameter space.
Keywords
- High contrast techniques
- Exoplanet astronomy
- James Webb Space Telescope
- Direct detection interferometry
