The Astrophysical Journal Letters (Jan 2024)
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy
- Masayuki Kuzuhara,
- Akihiko Fukui,
- John H. Livingston,
- José A. Caballero,
- Jerome P. de Leon,
- Teruyuki Hirano,
- Yui Kasagi,
- Felipe Murgas,
- Norio Narita,
- Masashi Omiya,
- Jaume Orell-Miquel,
- Enric Palle,
- Quentin Changeat,
- Emma Esparza-Borges,
- Hiroki Harakawa,
- Coel Hellier,
- Yasunori Hori,
- Kai Ikuta,
- Hiroyuki Tako Ishikawa,
- Takanori Kodama,
- Takayuki Kotani,
- Tomoyuki Kudo,
- Juan C. Morales,
- Mayuko Mori,
- Evangelos Nagel,
- Hannu Parviainen,
- Volker Perdelwitz,
- Ansgar Reiners,
- Ignasi Ribas,
- Jorge Sanz-Forcada,
- Bun’ei Sato,
- Andreas Schweitzer,
- Hugo M. Tabernero,
- Takuya Takarada,
- Taichi Uyama,
- Noriharu Watanabe,
- Mathias Zechmeister,
- Néstor Abreu García,
- Wako Aoki,
- Charles Beichman,
- Víctor J. S. Béjar,
- Timothy D. Brandt,
- Yéssica Calatayud-Borras,
- Ilaria Carleo,
- David Charbonneau,
- Karen A. Collins,
- Thayne Currie,
- John P. Doty,
- Stefan Dreizler,
- Gareb Fernández-Rodríguez,
- Izuru Fukuda,
- Daniel Galán,
- Samuel Geraldía-González,
- Josafat González-Rodríguez,
- Yuya Hayashi,
- Christina Hedges,
- Thomas Henning,
- Klaus Hodapp,
- Masahiro Ikoma,
- Keisuke Isogai,
- Shane Jacobson,
- Markus Janson,
- Jon M. Jenkins,
- Taiki Kagetani,
- Eiji Kambe,
- Yugo Kawai,
- Kiyoe Kawauchi,
- Eiichiro Kokubo,
- Mihoko Konishi,
- Judith Korth,
- Vigneshwaran Krishnamurthy,
- Takashi Kurokawa,
- Nobuhiko Kusakabe,
- Jungmi Kwon,
- Andrés Laza-Ramos,
- Florence Libotte,
- Rafael Luque,
- Alberto Madrigal-Aguado,
- Yuji Matsumoto,
- Dimitri Mawet,
- Michael W. McElwain,
- Pedro Pablo Meni Gallardo,
- Giuseppe Morello,
- Sara Muñoz Torres,
- Jun Nishikawa,
- Stevanus K. Nugroho,
- Masahiro Ogihara,
- Alberto Peláez-Torres,
- David Rapetti,
- Manuel Sánchez-Benavente,
- Martin Schlecker,
- Sara Seager,
- Eugene Serabyn,
- Takuma Serizawa,
- Monika Stangret,
- Aoi Takahashi,
- Huan-Yu Teng,
- Motohide Tamura,
- Yuka Terada,
- Akitoshi Ueda,
- Tomonori Usuda,
- Roland Vanderspek,
- Sébastien Vievard,
- David Watanabe,
- Joshua N. Winn,
- Maria Rosa Zapatero Osorio
Affiliations
- Masayuki Kuzuhara
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Akihiko Fukui
- ORCiD
- Komaba Institute for Science, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan; Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain
- John H. Livingston
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- José A. Caballero
- ORCiD
- Centro de Astrobiología, CSIC-INTA , Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, Spain
- Jerome P. de Leon
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Teruyuki Hirano
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Yui Kasagi
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Felipe Murgas
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Norio Narita
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; Komaba Institute for Science, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan; Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain
- Masashi Omiya
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Jaume Orell-Miquel
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Enric Palle
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Quentin Changeat
- ORCiD
- European Space Agency (ESA), ESA Office, Space Telescope Science Institute (STScI) , Baltimore, MD 21218, USA; Department of Physics and Astronomy, University College London , Gower Street, WC1E 6BT London, UK
- Emma Esparza-Borges
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Hiroki Harakawa
- ORCiD
- Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohōkū Place, Hilo, HI 96720, USA
- Coel Hellier
- ORCiD
- Astrophysics Group, Keele University , Staffordshire, ST5 5BG, UK
- Yasunori Hori
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Kai Ikuta
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Hiroyuki Tako Ishikawa
- ORCiD
- Department of Physics and Astronomy, The University of Western Ontario , 1151 Richmond Street, London, ON N6A 3K7, Canada
- Takanori Kodama
- ORCiD
- Earth-Life Science Institute (ELSI), Tokyo Institute of Technology , 2-12-1-I7E-315 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- Takayuki Kotani
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Tomoyuki Kudo
- ORCiD
- Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohōkū Place, Hilo, HI 96720, USA
- Juan C. Morales
- ORCiD
- Institut de Ciències de l’Espai (ICE, CSIC) , Campus UAB, Can Magrans s/n, 08193 Bellaterra, Barcelona, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , c/ Gran Capità 2-4, 08034 Barcelona, Spain
- Mayuko Mori
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Evangelos Nagel
- ORCiD
- Institut für Astrophysik und Geophysik, Georg-August-Universität , Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
- Hannu Parviainen
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Volker Perdelwitz
- ORCiD
- Department of Physics, Ariel University , Ariel 40700, Israel
- Ansgar Reiners
- ORCiD
- Institut für Astrophysik und Geophysik, Georg-August-Universität , Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
- Ignasi Ribas
- ORCiD
- Institut de Ciències de l’Espai (ICE, CSIC) , Campus UAB, Can Magrans s/n, 08193 Bellaterra, Barcelona, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , c/ Gran Capità 2-4, 08034 Barcelona, Spain
- Jorge Sanz-Forcada
- ORCiD
- Centro de Astrobiología, CSIC-INTA , Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, Spain
- Bun’ei Sato
- ORCiD
- Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
- Andreas Schweitzer
- ORCiD
- Hamburger Sternwarte , Gojenbergsweg 112, 21029 Hamburg, Germany
- Hugo M. Tabernero
- ORCiD
- Departamento de Física de la Tierra y Astrofísica and IPARCOS-UCM (Intituto de Física de Partículas y del Cosmos de la UCM), Facultad de Ciencias Físicas, Universidad Complutense de Madrid , 28040, Madrid, Spain
- Takuya Takarada
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Taichi Uyama
- ORCiD
- Department of Physics and Astronomy, California State University Northridge , 18111 Nordhoff Street, Northridge, CA 91330, USA; NASA Exoplanet Science Institute, Infrared Processing and Analysis Center , California Institute of Technology, Pasadena, CA 91125, USA
- Noriharu Watanabe
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Mathias Zechmeister
- ORCiD
- Institut für Astrophysik und Geophysik, Georg-August-Universität , Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
- Néstor Abreu García
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Wako Aoki
- ORCiD
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Charles Beichman
- ORCiD
- NASA Exoplanet Science Institute, Infrared Processing and Analysis Center , California Institute of Technology, Pasadena, CA 91125, USA; Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Víctor J. S. Béjar
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Timothy D. Brandt
- ORCiD
- Department of Physics, University of California , Santa Barbara, CA, USA
- Yéssica Calatayud-Borras
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Ilaria Carleo
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- David Charbonneau
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Karen A. Collins
- ORCiD
- Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Thayne Currie
- ORCiD
- Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohōkū Place, Hilo, HI 96720, USA; Department of Physics and Astronomy, University of Texas–San Antonio , San Antonio, TX, USA
- John P. Doty
- Noqsi Aerospace Ltd. , 15 Blanchard Avenue, Billerica, MA 01821, USA
- Stefan Dreizler
- ORCiD
- Institut für Astrophysik und Geophysik, Georg-August-Universität , Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
- Gareb Fernández-Rodríguez
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Izuru Fukuda
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Daniel Galán
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Samuel Geraldía-González
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Josafat González-Rodríguez
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Yuya Hayashi
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Christina Hedges
- ORCiD
- NASA Goddard Space Flight Center , Greenbelt, MD, USA; University of Maryland , Baltimore County, 1000 Hilltop Circle, Baltimore, MD, USA
- Thomas Henning
- ORCiD
- Max-Planck-Institut für Astronomie (MPIA) , Königstuhl 17, 69117 Heidelberg, Germany
- Klaus Hodapp
- University of Hawaii , Institute for Astronomy, 640 North Aohoku Place, Hilo, HI 96720, USA
- Masahiro Ikoma
- ORCiD
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Keisuke Isogai
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan; Okayama Observatory, Kyoto University , 3037-5 Honjo, Kamogatacho, Asakuchi, Okayama 719-0232, Japan
- Shane Jacobson
- University of Hawaii , Institute for Astronomy, 640 North Aohoku Place, Hilo, HI 96720, USA
- Markus Janson
- ORCiD
- Department of Astronomy, Stockholm University , AlbaNova University Center, SE-10691, Stockholm, Sweden
- Jon M. Jenkins
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA
- Taiki Kagetani
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Eiji Kambe
- Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohōkū Place, Hilo, HI 96720, USA
- Yugo Kawai
- ORCiD
- Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Kiyoe Kawauchi
- ORCiD
- Department of Physical Sciences, Ritsumeikan University , Kusatsu, Shiga 525-8577, Japan
- Eiichiro Kokubo
- ORCiD
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Mihoko Konishi
- ORCiD
- Faculty of Science and Technology, Oita University , 700 Dannoharu, Oita 870-1192, Japan
- Judith Korth
- ORCiD
- Lund Observatory, Division of Astrophysics, Department of Physics, Lund University , Box 118, 22100 Lund, Sweden
- Vigneshwaran Krishnamurthy
- ORCiD
- Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada; Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Institut Trottier de Recherche sur les Exoplanètes, Université de Montréal , Montréal, QC H3T 1J4, Canada
- Takashi Kurokawa
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; Institute of Engineering, Tokyo University of Agriculture and Technology , 2-24-16, Nakacho, Koganei, Tokyo, 184-8588, Japan
- Nobuhiko Kusakabe
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Jungmi Kwon
- Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Andrés Laza-Ramos
- ORCiD
- Departamento de Astronomía y Astrofísica, Universidad de Valencia (UV) , E-46100, Burjassot, Valencia, Spain
- Florence Libotte
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Rafael Luque
- ORCiD
- Department of Astronomy & Astrophysics, University of Chicago , Chicago, IL 60637, USA
- Alberto Madrigal-Aguado
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Yuji Matsumoto
- ORCiD
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Dimitri Mawet
- ORCiD
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA; Department of Astronomy, California Institute of Technology , Pasadena, CA 91125, USA
- Michael W. McElwain
- ORCiD
- NASA Goddard Space Flight Center , Greenbelt, MD, USA
- Pedro Pablo Meni Gallardo
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Giuseppe Morello
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Department of Space, Earth and Environment, Chalmers University of Technology , SE-412 96 Gothenburg, Sweden
- Sara Muñoz Torres
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Jun Nishikawa
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Stevanus K. Nugroho
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Masahiro Ogihara
- ORCiD
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University , 1 Lisuo Road, 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
- Alberto Peláez-Torres
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- David Rapetti
- ORCiD
- NASA Ames Research Center , Moffett Field, CA 94035, USA; Research Institute for Advanced Computer Science, Universities Space Research Association , Washington, DC 20024, USA
- Manuel Sánchez-Benavente
- ORCiD
- Instituto de Astrofísica de Canarias (IAC) , E-38200 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Martin Schlecker
- ORCiD
- Steward Observatory and Department of Astronomy, The University of Arizona , Tucson, AZ 85721, USA
- Sara Seager
- ORCiD
- Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Aeronautics and Astronautics, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Eugene Serabyn
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
- Takuma Serizawa
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Institute of Engineering, Tokyo University of Agriculture and Technology , 2-24-16, Nakacho, Koganei, Tokyo, 184-8588, Japan
- Monika Stangret
- ORCiD
- INAF-Osservatorio Astronomico di Padova , Vicolo dell’Osservatorio 5, 35122, Padova, Italy
- Aoi Takahashi
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Huan-Yu Teng
- ORCiD
- Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan; CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People’s Republic of China
- Motohide Tamura
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; National Astronomical Observatory of Japan , NINS, 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
- Yuka Terada
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan, R.O.C; Department of Astrophysics, National Taiwan University , Taipei 10617, Taiwan, R.O.C
- Akitoshi Ueda
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Tomonori Usuda
- ORCiD
- National Astronomical Observatory of Japan , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Astronomical Science Program, Graduate University for Advanced Studies (SOKENDAI) , 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Roland Vanderspek
- ORCiD
- Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Sébastien Vievard
- ORCiD
- Astrobiology Center , NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan ; [email protected]; Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohōkū Place, Hilo, HI 96720, USA
- David Watanabe
- ORCiD
- Planetary Discoveries in Fredericksburg , VA 22405, USA
- Joshua N. Winn
- ORCiD
- Department of Astrophysical Sciences, Princeton University , Princeton, NJ 08544, USA
- Maria Rosa Zapatero Osorio
- ORCiD
- Centro de Astrobiología, CSIC-INTA , Camino Bajo del Castillo s/n, E-28692 Villanueva de la Cañada, Madrid, Spain
- DOI
- https://doi.org/10.3847/2041-8213/ad3642
- Journal volume & issue
-
Vol. 967,
no. 2
p. L21
Abstract
Recent discoveries of Earth-sized planets transiting nearby M dwarfs have made it possible to characterize the atmospheres of terrestrial planets via follow-up spectroscopic observations. However, the number of such planets receiving low insolation is still small, limiting our ability to understand the diversity of the atmospheric composition and climates of temperate terrestrial planets. We report the discovery of an Earth-sized planet transiting the nearby (12 pc) inactive M3.0 dwarf Gliese 12 (TOI-6251) with an orbital period ( P _orb ) of 12.76 days. The planet, Gliese 12 b, was initially identified as a candidate with an ambiguous P _orb from TESS data. We confirmed the transit signal and P _orb using ground-based photometry with MuSCAT2 and MuSCAT3, and validated the planetary nature of the signal using high-resolution images from Gemini/NIRI and Keck/NIRC2 as well as radial velocity (RV) measurements from the InfraRed Doppler instrument on the Subaru 8.2 m telescope and from CARMENES on the CAHA 3.5 m telescope. X-ray observations with XMM-Newton showed the host star is inactive, with an X-ray-to-bolometric luminosity ratio of $\mathrm{log}{L}_{{\rm{X}}}/{L}_{\mathrm{bol}}\approx -5.7$ . Joint analysis of the light curves and RV measurements revealed that Gliese 12 b has a radius of 0.96 ± 0.05 R _⊕ , a 3 σ mass upper limit of 3.9 M _⊕ , and an equilibrium temperature of 315 ± 6 K assuming zero albedo. The transmission spectroscopy metric (TSM) value of Gliese 12 b is close to the TSM values of the TRAPPIST-1 planets, adding Gliese 12 b to the small list of potentially terrestrial, temperate planets amenable to atmospheric characterization with JWST.
Keywords
- Exoplanet astronomy
- Exoplanet atmospheres
- Exoplanets
- Extrasolar rocky planets
- Space telescopes
- Transit photometry
