planets and satellites: detection; planets and satellites: individual: TOI-129; planets and satellites: individual: HIP 65A; planets and satellites: individual: TOI-157; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics
Abstract :
[en] We report the confirmation and mass determination of three hot Jupiters discovered by the Transiting Exoplanet Survey Satellite (TESS) mission: HIP 65Ab (TOI-129, TIC-201248411) is an ultra-short-period Jupiter orbiting a bright (V = 11.1 mag) K4-dwarf every 0.98 days. It is a massive 3.213 ± 0.078 M[SUB]J[/SUB] planet in a grazing transit configuration with an impact parameter of b = 1.17[SUB]-0.08[/SUB][SUP]+0.10[/SUP]. As a result the radius is poorly constrained, 2.03[SUB]-0.49[/SUB][SUP]+0.61[/SUP]R[SUB]J[/SUB]. The planet's distance to its host star is less than twice the separation at which it would be destroyed by Roche lobe overflow. It is expected to spiral into HIP 65A on a timescale ranging from 80 Myr to a few gigayears, assuming a reduced tidal dissipation quality factor of Q[SUB]s[/SUB][SUP]'[/SUP] = 10[SUP]7[/SUP] - 10[SUP]9[/SUP]. We performed a full phase-curve analysis of the TESS data and detected both illumination- and ellipsoidal variations as well as Doppler boosting. HIP 65A is part of a binary stellar system, with HIP 65B separated by 269 AU (3.95 arcsec on sky). TOI-157b (TIC 140691463) is a typical hot Jupiter with a mass of 1.18 ± 0.13 M[SUB]J[/SUB] and a radius of 1.29 ± 0.02 R[SUB]J[/SUB]. It has a period of 2.08 days, which corresponds to a separation of just 0.03 AU. This makes TOI-157 an interesting system, as the host star is an evolved G9 sub-giant star (V = 12.7). TOI-169b (TIC 183120439) is a bloated Jupiter orbiting a V = 12.4 G-type star. It has a mass of 0.79 ±0.06 M[SUB]J[/SUB] and a radius of 1.09[SUB]-0.05[/SUB][SUP]+0.08[/SUP]R[SUB]J[/SUB]. Despite having the longest orbital period (P = 2.26 days) of the three planets, TOI-169b receives the most irradiation and is situated on the edge of the Neptune desert. All three host stars are metal rich with [Fe / H] ranging from 0.18 to0.24.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Nielsen, L. D.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Brahm, R.; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; Millennium Institute for Astrophysics, Chile
Bouchy, F.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Espinoza, N.; Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD, 21218, USA
Turner, O.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Rappaport, S.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Pearce, L.; NSF Graduate Research Fellow, Steward Observatory, University of Arizona, Tucson, AZ, 85721, USA
Ricker, G.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Vanderspek, R.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Latham, D. W.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA, 02138, USA
Seager, S.; NSF Graduate Research Fellow, Steward Observatory, University of Arizona, Tucson, AZ, 85721, USA ; Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, 02139, USA ; Department of Aeronautics and Astronautics, MIT, Cambridge, MA, 02139, USA
Winn, J. N.; Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USA
Jenkins, J. M.; NASA Ames Research Center, Moffett Field, CA, 94035, USA
Acton, J. S.; Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
Bakos, G.; Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USA
Barclay, T.; NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD, 20771, USA ; University of Maryland, Baltimore County, 1000 Hilltop Cir, Baltimore, MD, 21250, USA
Bryant, E. M.; Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Burleigh, M. R.; Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
Ciardi, D. R.; Caltech IPAC - NASA Exoplanet Science Institute 1200 E. California Ave, Pasadena, CA, 91125, USA
Collins, K. A.; Department of Aeronautics and Astronautics, MIT, Cambridge, MA, 02139, USA
Collins, K. I.; George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA
Cooke, B. F.; Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Csubry, Z.; Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USA
dos Santos, L. A.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Eigmüller, Ph; Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany
Fausnaugh, M. M.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Gan, T.; Physics Department and Tsinghua Centre for Astrophysics, Tsinghua University, Beijing, 100084, PR China
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
Goad, M. R.; Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
Guerrero, N.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Hagelberg, J.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Hart, R.; Centre for Astrophysics, University of Southern Queensland, Toowoomba, 4350, Australia
Henning, T.; Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, 69117, Germany
Huang, C. X.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Jehin, Emmanuel ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Jenkins, J. S.; Departamento de Astronomía, Universidad de Chile, Camino El Observatorio 1515, Las Condes, Santiago, Chile ; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, Santiago, Chile
Jordán, A.; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile ; Millennium Institute for Astrophysics, Chile
Kielkopf, J. F.; Department of Physics and Astronomy, University of Louisville, Louisville, KY, 40292, USA
Kossakowski, D.; Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, 69117, Germany
Lavie, B.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Law, N.; Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3255, USA
Lendl, M.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland ; Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, 8042, Graz, Austria
de Leon, J. P.; The University of Tokyo, 7-3-1 Hongo, Bunkyō, Tokyo, 113-8654, Japan
Lovis, C.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Mann, A. W.; Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3255, USA
Marmier, M.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
McCormac, J.; Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Mori, M.; The University of Tokyo, 7-3-1 Hongo, Bunkyō, Tokyo, 113-8654, Japan
Moyano, M.; Instituto de Astronomía, Universidad Católica del Norte, Angamos 0610, Antofagasta, 1270709, Chile
Narita, N.; Astrobiology Center, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan ; JST, PRESTO, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan ; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan ; Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain ; Komaba Institute for Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo, 153-8902, Japan
Osip, D.; Las Campanas Observatory, Carnegie Institution of Washington, Colina el Pino, Casilla 601, La Serena, Chile
Otegi, J. F.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland ; Institute for Computational Science, University of Zurich, Winterthurerstr. 190, 8057, Zurich, Switzerland
Pepe, F.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Pozuelos Romero, Francisco José ; Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, 69117, Germany ; Astrobiology Research Unit, Université de Liège, 19C Allée du 6 Août, 4000, Liège, Belgium
Raynard, L.; Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
Relles, H. M.; Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA, 02138, USA
Sarkis, P.; Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, 69117, Germany
Ségransan, D.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Seidel, J. V.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Shporer, A.; Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USA
Stalport, M.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Stockdale, C.; Hazelwood Observatory, Australia
Suc, V.; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile
Tamura, M.; The University of Tokyo, 7-3-1 Hongo, Bunkyō, Tokyo, 113-8654, Japan ; Astrobiology Center, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan ; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan
Tan, T. G.; Perth Exoplanet Survey Telescope, Perth, Western Australia, Australia
Tilbrook, R. H.; Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
Ting, E. B.; NASA Ames Research Center, Moffett Field, CA, 94035, USA
Trifonov, T.; Max-Planck-Institut für Astronomie, Königstuhl 17, Heidelberg, 69117, Germany
Udry, S.; Geneva Observatory, University of Geneva, Chemin des Mailettes 51, 1290, Versoix, Switzerland
Vanderburg, A.; NASA Sagan Fellow, Department of Astronomy, Unversity of Texas at Austin, Austin, TX, USA
Wheatley, P. J.; Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
Wingham, G.; Mt. Stuart Observatory, New Zealand
Zhan, Z.; Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, 02139, USA ; Department of Aeronautics and Astronautics, MIT, Cambridge, MA, 02139, USA
Ziegler, C.; Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario, M5S 3H4, Canada)
