HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project
Article
Article Title | HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Bento, J. (Author), Schmidt, B. (Author), Hartman, J. D. (Author), Bakos, G. A. (Author), Ciceri, S. (Author), Brahm, R. (Author), Bayliss, D. (Author), Espinoza, N. (Author), Zhou, G. (Author), Rabus, M. (Author), Bhatti, W. (Author), Penev, K. (Author), Csubry, Z. (Author), Jordan, A. (Author), Mancini, L. (Author), Henning, T. (Author), de Val-Borro, M. (Author), Tinney, C. G. (Author), Wright, D. J. (Author), Durkan, S. (Author), Suc, V. (Author), Noyes, R. (Author), Lazar, J. (Author), Papp, I. (Author) and Sari, P. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 468 (1), pp. 835-848 |
Number of Pages | 14 |
Year | 2017 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stx500 |
Web Address (URL) | https://academic.oup.com/mnras/article/468/1/835/3058183 |
Abstract | We report the discovery of three moderately high-mass transiting hot Jupiters from the HATSouth survey: HATS-22b, HATS-23b and HATS-24b. These planets add to the number of known planets in the similar to 2MJ regime. HATS-22b is a 2.74 +/- 0.11MJ mass and 0.953(-0.029)(+0.048) R-J radius planet orbiting a V = 13.455 +/- 0.040 sub-solar mass (M-* = 0.759 +/- 0.019M(circle dot); R-* = 0.759 +/- 0.019 R-circle dot) K-dwarf host star on an eccentric (e = 0.079 +/- 0.026) orbit. This planet's high planet-to-stellar mass ratio is further evidence that migration mechanisms for hot Jupiters may rely on exciting orbital eccentricities that bring the planets closer to their parent stars followed by tidal circularization. HATS-23b is a 1.478 +/- 0.080M(J) mass and 1.69 +/- 0.24 R-J radius planet on a grazing orbit around a V = 13.901 +/- 0.010 G-dwarf with properties very similar to those of the Sun (M* = 1.115 +/- 0.054; R-* = 1.145 +/- 0.070). HATS24b orbits a moderately bright V = 12.830 +/- 0.010 F-dwarf star (M-* = 1.218 +/- 0.036M circle dot; R-* = 1.194(-0.041)(+0.066) R circle dot). This planet has a mass of 2.39+0.21 -0.12MJ and an inflated radius of 1.516(-0.065)(+0.085) R-J. |
Keywords | photometric, spectroscopic, HATS-22, GSC 6664-00373, HATS-23, GSC 8382-01464, HATS-24, GSC 9054-00129, planetary systems, stars |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Australian National University |
Princeton University, United States | |
Max Planck Society, Germany | |
Pontifical Catholic University of Chile, Chile | |
University of Geneva, Switzerland | |
Center for Astrophysics Harvard and Smithsonian, United States | |
University of New South Wales | |
Queen's University Belfast, United Kingdom | |
Hungarian Astronomical Association, Hungary |
https://research.usq.edu.au/item/q53q5/hats-22b-hats-23b-and-hats-24b-three-new-transiting-super-jupiters-from-the-hatsouth-project
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