HATS-71b: A Giant Planet Transiting an M3 Dwarf Star in TESS Sector 1

Bakos, G. A. and Bayliss, D. and Bento, J. and Bhatti, W. and Brahm, R. and Csubry, Z. and Espinoza, N. and Hartman, J. D. and Henning, Th. and Jordan, A. and Mancini, L. and Penev, K. and Rabus, M. and Sarkis, P. and Suc, V. and de Val-Borro, M. and Zhou, G. ORCID: https://orcid.org/0000-0002-4891-3517 and Butler, R. P. and Crane, J. and Durkan, S. and Shectman, S. and Kim, J. and Lazar, J. and Papp, I. and Sari, P. and Ricker, G. and Vanderspek, R. and Latham, D. W. and Seager, S. and Winn, J. N. and Jenkins, J. and Chacon, A. D. and Furesz, G. and Goeke, B. and Li, J. and Quinn, S. and Quintana, E. V. and Tenenbaum, P. and Teske, J. and Vezie, M. and Yu, L. and Stockdale, C. and Evans, P. and Relles, H. M. (2020) HATS-71b: A Giant Planet Transiting an M3 Dwarf Star in TESS Sector 1. The Astronomical Journal, 159 (6):267. pp. 1-13. ISSN 0004-6256


We report the discovery of HATS-71b, a transiting gas giant planet on a day orbit around a mag M3 dwarf star. HATS-71 is the coolest M dwarf star known to host a hot Jupiter. The loss of light during transits is 4.7%, more than in any other confirmed transiting planet system. The planet was identified as a candidate by the ground-based HATSouth transit survey. It was confirmed using ground-based photometry, spectroscopy, and imaging, as well as space-based photometry from the NASA Transiting Exoplanet Survey Satellite mission (TIC 234523599). Combining all of these data, and utilizing Gaia DR2, we find that the planet has a radius of 1.024± 0.018 R J and mass of 0.37,± 0.24 M J (95% confidence upper limit of < 0.80 M J), while the star has a mass of 0.4861 pm 0.0060 M⊙ and a radius of 0.4783± 0.0060 R⊙.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 10 Feb 2022 04:31
Last Modified: 14 Feb 2022 02:14
Uncontrolled Keywords: Exoplanets; Exoplanet detection methods; Transit photometry; Radial velocity; Astronomical instrumentation; Observational astronomy
Fields of Research (2008): 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280120 Expanding knowledge in the physical sciences
Identification Number or DOI: https://doi.org/10.3847/1538-3881/ab8ad1
URI: http://eprints.usq.edu.au/id/eprint/44961

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