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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; [...]

Another shipment of six short-period giant planets from TESS

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  • Media type: E-Article
  • Title: Another shipment of six short-period giant planets from TESS
  • Contributor: 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; [...]
  • Published: Oxford University Press (OUP), 2023
  • Published in: Monthly Notices of the Royal Astronomical Society, 521 (2023) 2, Seite 2765-2785
  • Language: English
  • DOI: 10.1093/mnras/stad595
  • ISSN: 0035-8711; 1365-2966
  • Origination:
  • Footnote:
  • Description: ABSTRACT 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.
  • Access State: Open Access