Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b

被引：0

作者：

Carleo, Ilaria ^{[1
,2
,3
]}

Barragan, Oscar ^{[4
]}

Persson, Carina M. ^{[5
]}

Fridlund, Malcolm ^{[5
,6
,35
]}

Lam, Kristine W. F. ^{[7
]}

Messina, Sergio ^{[8
]}

Gandolfi, Davide ^{[9
]}

Smith, Alexis M. S. ^{[7
]}

Johnson, Marshall C. ^{[10
]}

Cochran, William ^{[17
,18
]}

Osborne, Hannah L. M. ^{[11
,12
]}

Brahm, Rafael ^{[13
,14
]}

Ciardi, David R. ^{[15
]}

Collins, Karen A. ^{[16
]}

Everett, Mark E. ^{[19
]}

Giacalone, Steven ^{[20
]}

Guenther, Eike W. ^{[21
]}

Hatzes, Artie ^{[21
]}

Hellier, Coel ^{[22
]}

Horner, Jonathan ^{[27
]}

Kabath, Petr ^{[23
]}

Korth, Judith ^{[24
]}

MacQueen, Phillip ^{[17
,18
]}

Masseron, Thomas ^{[2
,3
]}

Murgas, Felipe ^{[2
,3
]}

Nowak, Grzegorz ^{[2
,3
,25
]}

Rodriguez, Joseph E. ^{[26
]}

Watkins, Cristilyn N. ^{[16
]}

Wittenmyer, Rob ^{[27
]}

Zhou, George ^{[27
]}

Ziegler, Carl ^{[28
]}

Bieryla, Allyson ^{[16
]}

Boyd, Patricia T. ^{[29
]}

Clark, Catherine A. ^{[15
,30
]}

Dressing, Courtney D. ^{[31
]}

Eastman, Jason D. ^{[16
]}

Eberhardt, Jan ^{[32
]}

Endl, Michael ^{[17
,18
]}

Espinoza, Nestor ^{[33
]}

Fausnaugh, Michael ^{[34
,36
]}

Guerrero, Natalia M. ^{[35
,36
,37
]}

Henning, Thomas ^{[32
]}

Hesse, Katharine ^{[35
,36
]}

Hobson, Melissa J. ^{[38
]}

Howell, Steve B. ^{[39
]}

Jordan, Andres ^{[13
,14
]}

Latham, David W. ^{[16
]}

Lund, Michael B. ^{[15
]}

Mireles, Ismael ^{[40
]}

Narita, Norio ^{[2
,41
,42
]}

机构：

[1] INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy

[2] Inst Astrofis Canarias IAC, Tenerife 38205, Spain

[3] Univ La Laguna ULL, Dept Astrofis, Tenerife 38206, Spain

[4] Univ Oxford, Subdept Astrophys, Dept Phys, Oxford OX1 3RH, England

[5] Chalmers Univ Technol, Dept Space Earth & Environm, Onsala Space Observ, S-43992 Onsala, Sweden

[6] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands

[7] German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany

[8] INAF Osservatorio Astrofisico Catania, Via S Sofia 78, I-95123 Catania, Italy

[9] Univ Torino, Dipartimento Fis, Via Pietro Giuria 1, I-10125 Turin, Italy

[10] Ohio State Univ, Dept Astron, 4055 McPherson Lab,140 West 18th Ave, Columbus, OH 43210 USA

[11] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[12] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[13] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Ave Diagonal Torres 2640, Santiago, Chile

[14] Millennium Inst Astrophys, Valparaiso, Chile

[15] NASA, Exoplanet Sci Inst, CALTECH, IPAC, Pasadena, CA 91125 USA

[16] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[17] Univ Texas Austin, Dept Astron, 2515 Speedway, Stop C1400, Austin, TX 78712 USA

[18] Univ Texas Austin, McDonald Observ, 2515 Speedway Mail,Stop C1400, Austin, TX 78712 USA

[19] NSF Natl Opt Infrared Astron Res Lab, 950 N Cherry Ave, Tucson, AZ 85719 USA

[20] CALTECH, Dept Astron, Pasadena, CA 91125 USA

[21] Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany

[22] Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England

[23] Czech Acad Sci, Astron Inst, Fricova 298, Ondrejov 25165, Czech Republic

[24] Lund Univ, Dept Phys, Div Astrophys, Lund Observ, Box 43, S-22100 Lund, Sweden

[25] Nicolaus Copernicus Univ, Inst Astron, Fac Phys Astron & Informat, Grudziadzka 5, PL-87100 Torun, Poland

[26] Michigan State Univ, Ctr Data Intens & Time Domain Astron, Dept Phys & Astron, E Lansing, MI 48824 USA

[27] Univ Southern Queensland, Ctr Astrophys, UniSQ Toowoomba, West St, Toowoomba, Qld 4350, Australia

[28] Stephen F Austin State Univ, Dept Phys Engn & Astron, 1936 North St, Nacogdoches, TX 75962 USA

[29] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[30] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[31] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[32] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[33] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[34] Texas Tech Univ, Dept Phys & Astron, Lubbock, TX 79410 USA

[35] MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[36] MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[37] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

[38] Univ Geneva, Dept Astron, Observ Geneve, Chemin Pegasi 51b, CH-1290 Versoix, Switzerland

[39] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[40] Univ New Mexico, Dept Phys & Astron, 210 Yale Blvd NE, Albuquerque, NM 87131 USA

[41] Univ Tokyo, Komaba Inst Sci, 3-8-1 Komaba, Meguro, Tokyo 1538902, Japan

[42] Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[43] Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Santiago, Chile

[44] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[45] Univ Arizona, Steward Observ, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA

[46] MIT, Dept Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[47] MIT, Dept Aeronaut & Astronaut, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[48] SETI Inst, 339 N Bernardo Ave,Suite 200, Mountain View, CA 94043 USA

[49] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[50] Hazelwood Observ, Hazelwood, Australia

来源：

ASTRONOMY & ASTROPHYSICS | 2024年 / 690卷

基金：

欧洲研究理事会; 美国国家航空航天局; 澳大利亚研究理事会;

关键词：

planets and satellites: detection; planets and satellites: gaseous planets; WARM GIANT PLANET; MEAN-MOTION RESONANCE; HOT JUPITERS; ADAPTIVE OPTICS; RADIAL-VELOCITY; VALIDATED PLANETS; ECCENTRIC ORBIT; KEPLER; COMPANIONS; MIGRATION;

D O I：

10.1051/0004-6361/202451313

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Context. Hot and warm Jupiters might have undergone the same formation and evolution path, but the two populations exhibit different distributions of orbital parameters. This challenges our understanding of their actual origin. Aims. We report the results of our warm Jupiters survey, which was carried out with the CHIRON spectrograph within the KESPRINT collaboration. We addressed the question of the population origin by studying two planets that might help to bridge the gap between the two populations. Methods. We confirm two planets and determine their mass. One is a hot Jupiter (with an orbital period shorter than 10 days), TOI-2420 b, and the other is a warm Jupiter, TOI-2485 b. We analyzed them using a wide variety of spectral and photometric data in order to characterize these planetary systems. Results. We found that TOI-2420 b has an orbital period of P-b=5.8 days, a mass of M-b=0.9 M-J, and a radius of R-b=1.3 R-J, with a planetary density of 0.477 g cm(-3). TOI-2485 b has an orbital period of P-b=11.2 days, a mass of M-b=2.4 M-J, and a radius of R-b=1.1 R-J with a density of 2.36 g cm(-3). Conclusions. With the current parameters, the migration history for TOI-2420 b and TOI-2485 b is unclear: Scenarios of a high-eccentricity migration cannot be ruled out, and the characteristics of TOI-2485 b even support this scenario.

引用

页数：14

共 13 条

[1] Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b
Carleo, Ilaria
Barrágan, Oscar
Persson, Carina M.
Fridlund, Malcolm
Lam, Kristine W. F.
Messina, Sergio
Gandolfi, Davide
Smith, Alexis M. S.
Johnson, Marshall C.
Cochran, William
Osborne, Hannah L. M.
Brahm, Rafael
Ciardi, David R.
Collins, Karen A.
Everett, Mark E.
Giacalone, Steven
Guenther, Eike W.
Hatzes, Artie
Hellier, Coel
Horner, Jonathan
Kabáth, Petr
Korth, Judith
Macqueen, Phillip
Masseron, Thomas
Murgas, Felipe
Nowak, Grzegorz
Rodriguez, Joseph E.
Watkins, Cristilyn N.
Wittenmyer, Rob
Zhou, George
Ziegler, Carl
Bieryla, Allyson
Boyd, Patricia T.
Clark, Catherine A.
Dressing, Courtney D.
Eastman, Jason D.
Eberhardt, Jan
Endl, Michael
Espinoza, Nestor
Fausnaugh, Michael
Guerrero, Natalia M.
Henning, Thomas
Hesse, Katharine
Hobson, Melissa J.
Howell, Steve B.
Jordán, Andrés
Latham, David W.
Lund, Michael B.
Mireles, Ismael
Narita, Norio
Astronomy and Astrophysics, 1600, 690
[2] TOI-2379 b and TOI-2384 b: two super-Jupiter mass planets transiting low-mass host stars
Bryant, Edward M.
Bayliss, Daniel
Hartman, Joel D.
Sedaghati, Elyar
Hobson, Melissa J.
Jordan, Andres
Brahm, Rafael
Bakos, Gaspar a
Almenara, Jose Manuel
Barkaoui, Khalid
Bonfils, Xavier
Cointepas, Marion
Collins, Karen A.
Dransfield, Georgina
Evans, Phil
Gillon, Michael
Jehin, Emmanuel
Murgas, Felipe
Pozuelos, Francisco J.
Schwarz, Richard P.
Timmermans, Mathilde
Watkins, Cristilyn N.
Wuensche, Anael
Butler, R. Paul
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Shectman, Steve
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Essack, Zahra
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Seager, Sara
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Winn, Joshua N.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 533 (04) : 3893 - 3906
[3] TOI 122b and TOI 237b: Two Small Warm Planets Orbiting Inactive M Dwarfs Found by TESS
Waalkes, William C.
Berta-Thompson, Zachory K.
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Vanderspek, Roland
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Christiansen, Jessie
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Barkaoui, Khalid
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Briceno, Cesar
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Conti, Dennis
Gan, Tianjun
Gillon, Michael
Isopi, Giovanni
Jehin, Emmanuel
Jensen, Eric L. N.
Kielkopf, John F.
Law, Nicholas
Mallia, Franco
Mann, Andrew W.
Montet, Benjamin T.
Pozuelos, Francisco J.
Relles, Howard
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Ziegler, Carl
ASTRONOMICAL JOURNAL, 2021, 161 (01):
[4] Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS TOI-615b, TOI-622b, and TOI-2641b
Psaridi, Angelica
Bouchy, Francois
Lendl, Monika
Akinsanmi, Babatunde
Stassun, Keivan G.
Smalley, Barry
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Howard, Saburo
Ulmer-Moll, Solene
Grieves, Nolan
Barkaoui, Khalid
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ASTRONOMY & ASTROPHYSICS, 2023, 675
[5] TOI 762 A b and TIC 46432937 b: Two Giant Planets Transiting M-dwarf Stars
Hartman, Joel D.
Bayliss, Daniel
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Hobson, Melissa J.
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ASTRONOMICAL JOURNAL, 2024, 168 (05):
[6] TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others
Hartman, J. D.
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ASTRONOMICAL JOURNAL, 2023, 166 (04):
[7] TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf
Mireles, Ismael
Dragomir, Diana
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Collins, Karen A.
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Ciardi, David R.
Stassun, Keivan G.
Harris, Mallory
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Schwarz, Richard P.
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Riffeser, Arno
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Pepper, Joshua
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Passegger, Vera Maria
Ulmer-Moll, Solene
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Feliz, Dax L.
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Fausnaugh, Michael
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ASTROPHYSICAL JOURNAL LETTERS, 2023, 954 (01)
[8] TOI-1431b/MASCARA-5b: A Highly Irradiated Ultrahot Jupiter Orbiting One of the Hottest and Brightest Known Exoplanet Host Stars
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[9] TOI 694b and TIC 220568520b: Two Low-mass Companions near the Hydrogen-burning Mass Limit Orbiting Sun-like Stars
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[10] TOI-1296b and TOI-1298b observed with TESS and SOPHIE: two hot Saturn-mass exoplanets with different densities around metal-rich stars☆
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