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TOI-2285b: A 1.7 Ea...
TOI-2285b: A 1.7 Earth-radius planet near the habitable zone around a nearby M dwarf
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- Fukui, Akihiko (author)
- University of Tokyo, Japan,Instituto de Astrofísica de Canarias
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- Kimura, Tadahiro (author)
- University of Tokyo, Japan
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- Hirano, Teruyuki (author)
- Astrobiology Center, Japan
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- Narita, Norio (author)
- University of Tokyo, Japan,Astrobiology Center, Japan,Japan Science and Technology Agency (JST),Instituto de Astrofísica de Canarias
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- Kodama, Takanori (author)
- University of Tokyo, Japan
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- Hori, Yasunori (author)
- National Astronomical Observatory of Japan,Astrobiology Center, Japan
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- Ikoma, Masahiro (author)
- National Astronomical Observatory of Japan
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- Palle, Enric (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Murgas, Felipe (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Parviainen, Hannu (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Kawauchi, Kiyoe (author)
- Instituto de Astrofísica de Canarias
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- Mori, Mayuko (author)
- University of Tokyo, Japan
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- Esparza-Borges, Emma (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Bieryla, Allyson (author)
- Harvard-Smithsonian Center for Astrophysics
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- Irwin, Jonathan (author)
- Harvard-Smithsonian Center for Astrophysics
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- Safonov, Boris S. (author)
- M. V. Lomonosov Moscow State University
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- Stassun, Keivan G. (author)
- Fisk University,Vanderbilt University
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- Alvarez-Hernandez, Leticia (author)
- Universidad de la Laguna,University of La Laguna
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- Bejar, Victor J. S. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Casasayas-Barris, Nuria (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Chen, Guo (author)
- Chinese Academy of Sciences
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- Crouzet, Nicolas (author)
- European Space Research and Technology Centre (ESA ESTEC)
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- de Leon, Jerome P. (author)
- University of Tokyo, Japan
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- Isogai, Keisuke (author)
- University of Tokyo, Japan,Kyoto University
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- Kagetani, Taiki (author)
- University of Tokyo, Japan
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- Klagyivik, Peter (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Korth, Judith, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kurita, Seiya (author)
- University of Tokyo, Japan
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- Kusakabe, Nobuhiko (author)
- Astrobiology Center, Japan
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- Livingston, John (author)
- University of Tokyo, Japan
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- Luque, Rafael (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Madrigal-Aguado, Alberto (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Morello, Giuseppe (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Nishiumi, Taku (author)
- The Graduate University for Advanced Studies (SOKENDAI),Astrobiology Center, Japan
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- Orell-Miquel, Jaume (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Oshagh, Mahmoudreza (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Sanchez-Benavente, Manuel (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Stangret, Monika (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Terada, Yuka (author)
- Academia Sinica Taiwan,National Taiwan University
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- Watanabe, Noriharu (author)
- University of Tokyo, Japan
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- Zou, Yujie (author)
- University of Tokyo, Japan
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- Tamura, Motohide (author)
- University of Tokyo, Japan,National Astronomical Observatory of Japan,Astrobiology Center, Japan
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- Kurokawa, Takashi (author)
- Tokyo University of Agriculture and Technology,Astrobiology Center, Japan
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- Kuzuhara, Masayuki (author)
- National Astronomical Observatory of Japan,Astrobiology Center, Japan
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- Nishikawa, Jun (author)
- Astrobiology Center, Japan,The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan
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- Omiya, Masashi (author)
- Astrobiology Center, Japan,National Astronomical Observatory of Japan
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- Vievard, Sebastien (author)
- National Astronomical Observatory of Japan
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- Ueda, Akitoshi (author)
- The Graduate University for Advanced Studies (SOKENDAI),Astrobiology Center, Japan,National Astronomical Observatory of Japan
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- Latham, David W. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Quinn, Samuel N. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Strakhov, Ivan S. (author)
- M. V. Lomonosov Moscow State University
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- Belinski, Alexandr A. (author)
- M. V. Lomonosov Moscow State University
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- Jenkins, Jon M. (author)
- NASA Ames Research Center
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- Ricker, George R. (author)
- Massachusetts Institute of Technology (MIT)
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- Seager, Sara (author)
- Massachusetts Institute of Technology (MIT)
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- Vanderspek, Roland (author)
- Massachusetts Institute of Technology (MIT)
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- Winn, Joshua N. (author)
- Princeton University
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- Charbonneau, David (author)
- Harvard-Smithsonian Center for Astrophysics
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- Ciardi, David R. (author)
- California Institute of Technology (Caltech)
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- Collins, Karen A. (author)
- Harvard-Smithsonian Center for Astrophysics
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Doty, John P. (author)
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- Bachelet, Etienne (author)
- Las Cumbres Observatory Global Telescope Network, Inc
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- Harbeck, Daniel (author)
- Las Cumbres Observatory Global Telescope Network, Inc
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(creator_code:org_t)
- 2021-12-05
- 2022
- English.
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In: Publication of the Astronomical Society of Japan. - : Oxford University Press (OUP). - 2053-051X .- 0004-6264. ; 74:1, s. L1-L8
- Related links:
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https://research.cha... (primary) (free)
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https://academic.oup...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We report the discovery of TO1-2285b, a sub-Neptune-sized planet transiting a nearby (42 pc) M dwarf with a period of 27.3 d. We identified the transit signal from the Transiting Exoplanet Survey Satellite photometric data, which we confirmed with ground-based photometric observations using the multiband imagers MuSCAT2 and MuSCAT3. Combining these data with other follow-up observations including high-resolution spectroscopy with the Tillinghast Reflector Echelle Spectrograph, high-resolution imaging with the SPeckle Polarimeter, and radial velocity (RV) measurements with the InfraRed Doppler instrument, we find that the planet has a radius of 1.74 +/- 0.08 R-circle plus, a mass of <19.5 M-circle plus + (95% c.I.), and an insolation flux of 1.54 +/- 0.14 times that of the Earth. Although the planet resides just outside the habitable zone for a rocky planet, if the planet harbors an H2O layer under a hydrogen-rich atmosphere, then liquid water could exist on the surface of the H2O layer depending on the planetary mass and water mass fraction. The bright host star in the near-infrared (K-s = 9.0) makes this planet an excellent target for further RV and atmospheric observations to improve our understanding of the composition, formation, and habitability of sub-Neptune-sized planets.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
Keyword
- planets and satellites:detection
- planets and satellites: interiors
- planets and satellites: individual (TOI-2285b)
- techniques: radial velocities
- techniques: photometric
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Fukui, Akihiko
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Kimura, Tadahiro
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Hirano, Teruyuki
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Narita, Norio
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Kodama, Takanori
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Hori, Yasunori
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show more...
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Ikoma, Masahiro
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Palle, Enric
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Murgas, Felipe
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Parviainen, Hann ...
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Kawauchi, Kiyoe
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Mori, Mayuko
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Esparza-Borges, ...
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Bieryla, Allyson
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Irwin, Jonathan
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Safonov, Boris S ...
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Stassun, Keivan ...
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Alvarez-Hernande ...
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Bejar, Victor J. ...
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Casasayas-Barris ...
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Chen, Guo
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Crouzet, Nicolas
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de Leon, Jerome ...
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Isogai, Keisuke
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Kagetani, Taiki
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Klagyivik, Peter
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Korth, Judith, 1 ...
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Kurita, Seiya
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Kusakabe, Nobuhi ...
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Livingston, John
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Luque, Rafael
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Madrigal-Aguado, ...
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Morello, Giusepp ...
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Nishiumi, Taku
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Orell-Miquel, Ja ...
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Oshagh, Mahmoudr ...
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Sanchez-Benavent ...
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Stangret, Monika
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Terada, Yuka
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Watanabe, Noriha ...
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Zou, Yujie
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Tamura, Motohide
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Kurokawa, Takash ...
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Kuzuhara, Masayu ...
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Nishikawa, Jun
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Omiya, Masashi
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Vievard, Sebasti ...
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Ueda, Akitoshi
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Latham, David W.
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Quinn, Samuel N.
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Strakhov, Ivan S ...
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Belinski, Alexan ...
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Jenkins, Jon M.
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Ricker, George R ...
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Seager, Sara
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Vanderspek, Rola ...
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Winn, Joshua N.
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Charbonneau, Dav ...
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Ciardi, David R.
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Collins, Karen A ...
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Doty, John P.
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Bachelet, Etienn ...
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Harbeck, Daniel
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Meteorology and ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geophysics
- Articles in the publication
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Publication of t ...
- By the university
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Chalmers University of Technology