Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization
Luque, R.1,2; Palle, E.1,2; Kossakowski, D.3; Dreizler, S.4; Kemmer, J.5; Espinoza, N.3; Burt, J.6; Anglada-Escude, G.7,8; Bejar, V. J. S.1,2; Caballero, J. A.9; Collins, K. A.10; Collins, K., I11; Cortes-Contreras, M.9; Diez-Alonso, E.12,13,14; Feng, F.15; Hatzes, A.16; Hellier, C.17; Henning, T.3; Jeffers, S., V4; Kaltenegger, L.18; Kuerster, M.3; Madden, J.18; Molaverdikhani, K.3; Montes, D.12,13; Narita, N.1,19,20,21; Nowak, G.1,2; Ofir, A.22; Oshagh, M.4; Parviainen, H.1,2; Quirrenbach, A.5; Reffert, S.5; Reiners, A.4; Rodriguez-Lopez, C.8; Schlecker, M.3; Stock, S.5; Trifonov, T.3; Winn, J. N.23; Zapatero Osorio, M. R.24; Zechmeister, M.4; Amado, P. J.8; Anderson, D. R.17; Batalha, N. E.25; Bauer, F. F.8; Bluhm, P.5; Burke, C. J.6; Butler, R. P.15; Caldwell, D. A.26,27; Chen, G.28; Crane, J. D.29; Dragomir, D.6; Dressing, C. D.30; Dynes, S.6; Jenkins, J. M.27; Kaminski, A.5; Klahr, H.3; Kotani, T.19,21; Lafarga, M.31,32; Latham, D. W.10; Lewin, P.33; McDermott, S.34; Montanes-Rodriguez, P.1,2; Morales, J. C.31,32; Murgas, F.1,2; Nagel, E.35; Pedraz, S.36; Ribas, I31,32; Ricker, G. R.6; Rowden, P.37; Seager, S.6,38,39; Shectman, S. A.29; Tamura, M.19,21,40; Teske, J.29; Twicken, J. D.26,27; Vanderspeck, R.6; Wang, S. X.15; Wohler, B.26,27
Corresponding AuthorLuque, R.(
AbstractWe report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5 V star, using data from the Transiting Exoplanet Survey Satellite (TESS). GJ 357 b (TOI-562.01) is a transiting, hot, Earth-sized planet (T-eq = 525 +/- 11 K) with a radius of R-b = 1.217 +/- 0.084 R-circle plus and an orbital period of P-b = 3.93 d. Precise stellar radial velocities from CARMENES and PFS, as well as archival data from HIRES, UVES, and HARPS also display a 3.93-day periodicity, confirming the planetary nature and leading to a planetary mass of M-b = 1.84 +/- 0.31 M-circle plus. In addition to the radial velocity signal for GJ 357 b, more periodicities are present in the data indicating the presence of two further planets in the system: GJ 357 c, with a minimum mass of M-c = 3.40 +/- 0.46 M-circle plus in a 9.12 d orbit, and GJ 357 d, with a minimum mass of M-d = 6.1 +/- 1.0 M-circle plus in a 55.7 d orbit inside the habitable zone. The host is relatively inactive and exhibits a photometric rotation period of P-rot = 78 +/- 2 d. GJ 357 b is to date the second closest transiting planet to the Sun, making it a prime target for further investigations such as transmission spectroscopy. Therefore, GJ 357 b represents one of the best terrestrial planets suitable for atmospheric characterization with the upcoming JWST and ground-based ELTs.
Keywordplanetary systems techniques: photometric techniques: radial velocities stars: individual: G1 357 stars: late-type
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000479054700001
Citation statistics
Document Type期刊论文
Corresponding AuthorLuque, R.
Affiliation1.Inst Astrofis Canarias, Tenerife 38205, Spain
2.Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain
3.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
4.Georg August Univ, Inst Astrophys, Friedrich Hund Pl 1, D-37077 Gottingen, Germany
5.Heidelberg Univ, Landessternwarte, Zentrum Astron, Konigstuhl 12, D-69117 Heidelberg, Germany
6.MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA
7.Queen Mary Univ London, Sch Phys & Astron, 327 Mile End Rd, London E1 4NS, England
8.CSIC, IAA, Glorieta Astron S-N, E-18008 Granada, Spain
9.ESAC, CSIC, Ctr Astrobiol, INTA, Camino Bajo Castillo S-N, Madrid 28692, Spain
10.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
11.Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
12.Univ Complutense Madrid, Dept Fis Tierra & Astrofis, Fac Ciencias Fis, E-28040 Madrid, Spain
13.Univ Complutense Madrid, IPARCOS, Fac Ciencias Fis, Inst Fis Particulas & Cosmos, E-28040 Madrid, Spain
14.Univ Oviedo, Dept Exploitat & Explorat Mines, Oviedo, Spain
15.Carnegie Inst Sci, Dept Terr Magnetism, 5241 Broad Branch Rd NW, Washington, DC 20015 USA
16.Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany
17.Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England
18.Cornell Univ, Carl Sagan Inst, Ithaca, NY 14853 USA
19.Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
20.PRESTO, JST, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
21.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
22.Weizmann Inst Sci, 234 Herzl St, IL-761001 Rehovot, Israel
23.Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 USA
24.CSIC, Ctr Astrobiol, INTA, Carretera Ajalvir Km 4, Madrid 28850, Spain
25.Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
26.SETI Inst, Mountain View, CA 94043 USA
27.NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
28.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
29.Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA
30.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
31.CSIC, Inst Ciencies Espai ICE, Campus UAB,C Can Magrans S-N, Bellaterra 08193, Spain
32.IEEC, Barcelona 08034, Spain
33.Maury Lewin Astron Observ, Glendora, CA 91741 USA
34.Protologic LLC, 1718 Euclid St NW, Washington, DC 20009 USA
35.Univ Hamburg, Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany
36.CSIC, Ctr Astron Hispano Aleman, Observ Astron Calar Alto, MPG, Gergal 04550, Almeria, Spain
37.Open Univ, Sch Phys Sci, Milton Keynes MK7 6AA, Bucks, England
38.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA
39.MIT, Dept Aeronaut & Astronaut, 77 Massachusetts Ave, Cambridge, MA 02139 USA
40.Univ Tokyo, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
Recommended Citation
GB/T 7714
Luque, R.,Palle, E.,Kossakowski, D.,et al. Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization[J]. ASTRONOMY & ASTROPHYSICS,2019,628:18.
APA Luque, R..,Palle, E..,Kossakowski, D..,Dreizler, S..,Kemmer, J..,...&Wohler, B..(2019).Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization.ASTRONOMY & ASTROPHYSICS,628,18.
MLA Luque, R.,et al."Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization".ASTRONOMY & ASTROPHYSICS 628(2019):18.
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