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Sökning: onr:"swepub:oai:research.chalmers.se:885a9d8e-8d43-4ece-873c-5ac598d50a7c" > Validation and atmo...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00009090naa a2201045 4500
001oai:research.chalmers.se:885a9d8e-8d43-4ece-873c-5ac598d50a7c
003SwePub
008221014s2022 | |||||||||||000 ||eng|
0247 a https://doi.org/10.1051/0004-6361/2022433812 DOI
0247 a https://research.chalmers.se/publication/5324842 URI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Kawauchi, K.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut
2451 0a Validation and atmospheric exploration of the sub-Neptune TOI-2136b around a nearby M3 dwarf
264 c 2022-09-27
264 1b EDP Sciences,c 2022
338 a electronic2 rdacarrier
520 a Context. The NASA space telescope TESS is currently in the extended mission of its all-sky search for new transiting planets. Of the thousands of candidates that TESS is expected to deliver, transiting planets orbiting nearby M dwarfs are particularly interesting targets since they provide a great opportunity to characterize their atmospheres by transmission spectroscopy. Aims. We aim to validate and characterize the new sub-Neptune-sized planet candidate TOI-2136.01 orbiting a nearby M dwarf (d = 33.36 +/- 0.02 pc, T-eff = 3373 +/- 108 K) with an orbital period of 7.852 days. Methods. We use TESS data, ground-based multicolor photometry, and radial velocity measurements with the InfraRed Doppler (IRD) instrument on the Subaru Telescope to validate the planetary nature of TOI-2136.01, and estimate the stellar and planetary parameters. We also conduct high-resolution transmission spectroscopy to search for helium in its atmosphere. Results. We confirm that TOI-2136.01 (now named TOI-2136b) is a bona fide planet with a planetary radius of R-p = 2.20 +/- 0.07 R-circle plus and a mass of M-p = 4.7(-2.6)(+3.1) M-circle plus. We also search for helium 10830 angstrom absorption lines and place an upper limit on the equivalent width of <7.8 m angstrom and on the absorption signal of <1.44% with 95% confidence. Conclusions. TOI-2136b is a sub-Neptune transiting a nearby and bright star (J = 10.8 mag), and is a potentially hycean planet, which is a new class of habitable planets with large oceans under a H-2-rich atmosphere, making it an excellent target for atmospheric studies to understand the formation, evolution, and habitability of the small planets.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geofysik0 (SwePub)105052 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geophysics0 (SwePub)105052 hsv//eng
653 a planets and satellites: individual: TOI-2136b
653 a techniques: photometric
653 a planets and satellites: atmospheres
653 a techniques: radial velocities
653 a planets and satellites: detection
7001 a Murgas, F.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut
7001 a Palle, E.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut
7001 a Narita, N.u University of Tokyo, Japan,Astrobiology Center, Japan,Instituto de Astrofísica de Canarias,Japan Science and Technology Agency (JST)4 aut
7001 a Fukui, A.u University of Tokyo, Japan,Instituto de Astrofísica de Canarias4 aut
7001 a Hirano, T.u National Astronomical Observatory of Japan,Astrobiology Center, Japan4 aut
7001 a Parviainen, H.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut
7001 a Ishikawa, H. T.u National Astronomical Observatory of Japan,Astrobiology Center, Japan4 aut
7001 a Watanabe, N.u University of Tokyo, Japan4 aut
7001 a Esparaza-Borges, E.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut
7001 a Kuzuhara, M.u Astrobiology Center, Japan,National Astronomical Observatory of Japan4 aut
7001 a Orell-Miquel, J.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut
7001 a Krishnamurthy, Vu Astrobiology Center, Japan,National Astronomical Observatory of Japan4 aut
7001 a Mori, M.u University of Tokyo, Japan4 aut
7001 a Kagetani, T.u University of Tokyo, Japan4 aut
7001 a Zou, Y.u University of Tokyo, Japan4 aut
7001 a Isogai, K.u University of Tokyo, Japan,Kyoto University4 aut
7001 a Livingston, J. H.u University of Tokyo, Japan,Astrobiology Center, Japan,National Astronomical Observatory of Japan4 aut
7001 a Howell, S. B.u NASA Ames Research Center4 aut
7001 a Crouzet, N.u European Space Agency (ESA)4 aut
7001 a de Leon, J. P.u University of Tokyo, Japan4 aut
7001 a Kimura, T.u University of Tokyo, Japan4 aut
7001 a Kodama, T.u University of Tokyo, Japan4 aut
7001 a Korth, Judith,d 1987u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)korth
7001 a Kurita, S.u University of Tokyo, Japan4 aut
7001 a Laza-Ramos, A.u Instituto de Astrofísica de Canarias4 aut
7001 a Luque, R.u Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)4 aut
7001 a Madrigal-Aguado, A.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut
7001 a Miyakawa, K.u Tokyo Institute of Technology4 aut
7001 a Morello, G.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut
7001 a Nishiumi, T.u University of Tokyo, Japan,The Graduate University for Advanced Studies (SOKENDAI),Astrobiology Center, Japan4 aut
7001 a Rodriguez, G. E. F.u Instituto de Astrofísica de Canarias4 aut
7001 a Sanchez-Benavente, M.u Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna4 aut
7001 a Stangret, M.u Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias4 aut
7001 a Teng, H.u Tokyo Institute of Technology4 aut
7001 a Terada, Y.u Academia Sinica Taiwan,National Taiwan University4 aut
7001 a Gnilka, C. L.u NASA Ames Research Center,California Institute of Technology (Caltech)4 aut
7001 a Guerrero, N.u Massachusetts Institute of Technology (MIT),University of Florida4 aut
7001 a Harakawa, H.u National Astronomical Observatory of Japan4 aut
7001 a Hodapp, K.u University of Hawaii4 aut
7001 a Hori, Y.u National Astronomical Observatory of Japan,Astrobiology Center, Japan4 aut
7001 a Ikoma, M.u National Astronomical Observatory of Japan4 aut
7001 a Jacobson, S.u University of Hawaii4 aut
7001 a Konishi, M.u Oita University4 aut
7001 a Kotani, T.u Astrobiology Center, Japan,The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan4 aut
7001 a Kudo, T.u National Astronomical Observatory of Japan4 aut
7001 a Kurokowa, T.u Tokyo University of Agriculture and Technology,Astrobiology Center, Japan4 aut
7001 a Kusakabe, N.u Astrobiology Center, Japan,National Astronomical Observatory of Japan4 aut
7001 a Nishikawa, J.u Astrobiology Center, Japan,National Astronomical Observatory of Japan,The Graduate University for Advanced Studies (SOKENDAI)4 aut
7001 a Omiya, M.u National Astronomical Observatory of Japan,Astrobiology Center, Japan4 aut
7001 a Serizawa, T.u Tokyo University of Agriculture and Technology,National Astronomical Observatory of Japan4 aut
7001 a Tamura, M.u University of Tokyo, Japan,National Astronomical Observatory of Japan,Astrobiology Center, Japan4 aut
7001 a Ueda, A.u The Graduate University for Advanced Studies (SOKENDAI),National Astronomical Observatory of Japan,Astrobiology Center, Japan4 aut
7001 a Vievard, S.u Astrobiology Center, Japan,National Astronomical Observatory of Japan4 aut
7102 a Instituto de Astrofísica de Canariasb Universidad de la Laguna4 org
7730 t Astronomy and Astrophysicsd : EDP Sciencesg 666q 666x 0004-6361x 1432-0746
8564 u https://research.chalmers.se/publication/532484/file/532484_Fulltext.pdfx primaryx freey FULLTEXT
8564 8u https://doi.org/10.1051/0004-6361/202243381
8564 8u https://research.chalmers.se/publication/532484

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