Bibcode
Rodriguez, Joseph E.; Quinn, Samuel N.; Vanderburg, Andrew; Zhou, George; Eastman, Jason D.; Thygesen, Erica; Cale, Bryson; Ciardi, David R.; Reed, Phillip A.; Oelkers, Ryan J.; Collins, Karen A.; Bieryla, Allyson; Latham, David W.; Gonzales, Erica J.; Scott Gaudi, B.; Hellier, Coel; Jones, Matías I.; Brahm, Rafael; Sokolovsky, Kirill; Schulte, Jack; Srdoc, Gregor; Kielkopf, John; Grau Horta, Ferran; Massey, Bob; Evans, Phil; Stephens, Denise C.; McLeod, Kim K.; Chazov, Nikita; Krushinsky, Vadim; Ghachoui, Mourad; Safonov, Boris S.; Dedrick, Cayla M.; Conti, Dennis; Laloum, Didier; Giacalone, Steven; Ziegler, Carl; Guerra Serra, Pere; Naves Nogues, Ramon; Murgas, Felipe; Michaels, Edward J.; Ricker, George R.; Vanderspek, Roland K.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Addison, Brett; Alfaro, Owen; Anderson, D. R.; Aydi, Elias; Beatty, Thomas G.; Bedding, Timothy R.; Belinski, Alexander A.; Benkhaldoun, Zouhair; Berlind, Perry; Blake, Cullen H.; Bowen, Michael J.; Bowler, Brendan P.; Boyle, Andrew W.; Branson, Dalton; Briceño, César; Calkins, Michael L.; Campbell, Emma; Christiansen, Jessie L.; Chomiuk, Laura; Collins, Kevin I.; Cornachione, Matthew A.; Daassou, Ahmed; Dressing, Courtney D.; Esquerdo, Gilbert A.; Feliz, Dax L.; Fong, William; Fukui, Akihiko; Gan, Tianjun; Gill, Holden; Goliguzova, Maria V.; Hansen, Jarrod; Henning, Thomas; Hintz, Eric G.; Hobson, Melissa J.; Horner, Jonathan; Huang, Chelsea X.; James, David J.; Jensen, Jacob S.; Johnson, Samson A.; Jordán, Andrés; Kane, Stephen R.; Barkaoui, Khalid; Kim, Myung-Jin; Kim, Kingsley; Kuhn, Rudolf B.; Law, Nicholas; Lewin, Pablo; Liu, Hui-Gen; Lund, Michael B.; Mann, Andrew W.; McCrady, Nate; Mengel, Matthew W.; Mink, Jessica; Murphy, Lauren G.; Narita, Norio et al.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society
Fecha de publicación:
5
2023
Número de citas
12
Número de citas referidas
10
Descripción
We present the discovery and characterization of six short-period, transiting giant planets from NASA's Transiting Exoplanet Survey Satellite (TESS) -- TOI-1811 (TIC 376524552), TOI-2025 (TIC 394050135), TOI-2145 (TIC 88992642), TOI-2152 (TIC 395393265), TOI-2154 (TIC 428787891), and TOI-2497 (TIC 97568467). All six planets orbit bright host stars (8.9 <G < 11.8, 7.7 <K < 10.1). Using a combination of time-series photometric and spectroscopic follow-up observations from the TESS Follow-up Observing Program Working Group, we have determined that the planets are Jovian-sized (RP = 0.99--1.45 RJ), have masses ranging from 0.92 to 5.26 MJ, and orbit F, G, and K stars (4766 ≤ Teff ≤ 7360 K). We detect a significant orbital eccentricity for the three longest-period systems in our sample: TOI-2025 b (P = 8.872 d, 0.394$^{+0.035}_{-0.038}$), TOI-2145 b (P = 10.261 d, e = $0.208^{+0.034}_{-0.047}$), and TOI-2497 b (P = 10.656 d, e = $0.195^{+0.043}_{-0.040}$). TOI-2145 b and TOI-2497 b both orbit subgiant host stars (3.8 < log g <4.0), but these planets show no sign of inflation despite very high levels of irradiation. The lack of inflation may be explained by the high mass of the planets; $5.26^{+0.38}_{-0.37}$ MJ (TOI-2145 b) and 4.82 ± 0.41 MJ (TOI-2497 b). These six new discoveries contribute to the larger community effort to use TESS to create a magnitude-complete, self-consistent sample of giant planets with well-determined parameters for future detailed studies.
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Enric
Pallé Bago