Yee, SW, Winn, JN, Hartman, JD, Bouma, LG, Zhou, G, Quinn, SN, Latham, DW, Bieryla, A, Rodriguez, JE, Collins, KA, Alfaro, O, Barkaoui, K, Beard, C, Belinski, AA, Benkhaldoun, Z, Benni, P, Bernacki, K, Boyle, AW, Butler, RP, Caldwell, DA, Chontos, A, Christianse, JL, Cia, DR, Coll, KI, Conti, DM, Crane, JD, Daylan, T, Dressing, CD, Eastman, JD, Essack, Z, Evans, P, Everett, ME, Fajardo-Acosta, S, Fores-Toribio, R, Furlan, E, Ghachoui, M, Gillon, M, Hellier, C, Helm, I, Howard, AW, Howell, SB, Isaacson, H, Jehin, E, Jenkin, JM, Jensen, ELN, Kielkopf, JF, Laloum, D, Leonhardes-Barboza, N, Lewin, P, Logsdon, SE, Lubin, J, Lund, MB, MacDougall, MG, Mann, AW, Maslennikova, NA, Massey, B, McLeod, KK, Munoz, JA, Newman, P, Orlov, V, Plavchan, P, Popowicz, A, Pozuelos, FJ, Pritchard, TA, Radford, DJ, Reefe, M, Ricker, GR, Rudat, A, Safonov, BS, Schwarz, RP, Schweiker, H, Scott, NJ, Seager, S, Shectman, SA, Stockdale, C, Tan, T-G, Teske, JK, Thomas, NB, Timmermans, M, Vanderspek, R, Vermilion, D, Watanabe, D, Weiss, LM, West, RG, Van Zandt, J, Zejmo, M and Ziegler, C (2023) The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets*. Astrophysical Journal Supplement Series, 265 (1). ISSN 0067-0049

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NASA's Transiting Exoplanet Survey Satellite (TESS) mission promises to improve our understanding of hot Jupiters by providing an all-sky, magnitude-limited sample of transiting hot Jupiters suitable for population studies. Assembling such a sample requires confirming hundreds of planet candidates with additional follow-up observations. Here we present 20 hot Jupiters that were detected using TESS data and confirmed to be planets through photometric, spectroscopic, and imaging observations coordinated by the TESS Follow-up Observing Program. These 20 planets have orbital periods shorter than 7 days and orbit relatively bright FGK stars (10.9 < G < 13.0). Most of the planets are comparable in mass to Jupiter, although there are four planets with masses less than that of Saturn. TOI-3976b, the longest-period planet in our sample (P = 6.6 days), may be on a moderately eccentric orbit (e = 0.18 ± 0.06), while observations of the other targets are consistent with them being on circular orbits. We measured the projected stellar obliquity of TOI-1937A b, a hot Jupiter on a 22.4 hr orbit with the Rossiter–McLaughlin effect, finding the planet's orbit to be well aligned with the stellar spin axis (∣λ∣ = 4fdg0 ± 3fdg5). We also investigated the possibility that TOI-1937 is a member of the NGC 2516 open cluster but ultimately found the evidence for cluster membership to be ambiguous. These objects are part of a larger effort to build a complete sample of hot Jupiters to be used for future demographic and detailed characterization work.

Item Type: Article
Additional Information: Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Subjects: Q Science > QB Astronomy
Q Science > QB Astronomy > QB460 Astrophysics
Q Science > QB Astronomy > QB600 Planets. Planetology
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 24 Apr 2023 10:17
Last Modified: 24 Apr 2023 10:17

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