HATS-59b,c: a transiting hot Jupiter and a cold massive giant planet around a sun-like star

Sarkis, P. and Henning, Th. and Hartman, J. D. and Bakos, G. A. and Brahm, R. and Jordan, A. and Bayliss, D. and Mancini, L. and Espinoza, N. and Rabus, M. and Csubry, Z. and Bhatti, W. and Penev, K. and Zhou, G. and Bento, J. and Tan, T. G. and Arriagada, P. and Butler, R. P. and Crane, J. D. and Shectman, S. and Tinney, C. G. and Wright, D. J. and Addison, B. and Durkan, S. and Suc, V. and Buchhave, L. A. and de Val-Borro, M. and Lazar, J. and Papp, I. and Sari, P. (2018) HATS-59b,c: a transiting hot Jupiter and a cold massive giant planet around a sun-like star. The Astronomical Journal, 156 (5 - Article 216). pp. 1-11. ISSN 0004-6256

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Abstract

We report the first discovery of a multi-planetary system by the HATSouth network, HATS-59b,c, a planetary system with an inner transiting hot Jupiter and an outer cold massive giant planet, which was detected via radial velocity. The inner transiting planet, HATS-59b, is on an eccentric orbit with e = 0.129 +/- 0.049, orbiting a V = 13.951 +/- 0.030 mag solar-like star (M-star = 1.038 +/- 0.039 M-circle dot and R-star = 1.036 +/- 0.067 R-circle dot) with a period of 5.416081 +/- 0.000016 days. The outer companion, HATS-59c is on a circular orbit with m sin i = 12.70 +/- 0.87 M-J and a period of 1422 +/- 14 days. The inner planet has a mass of 0.806 +/- 0.069 M-J and a radius of 1.126 +/- 0.077 R-J, yielding a density of 0.70 +/- 0.16 g cm(-3). Unlike most planetary systems that include only a single hot Jupiter, HATS-59b, c includes, in addition to the transiting hot Jupiter, a massive outer companion. The architecture of this system is valuable for understanding planet migration.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 09 Sep 2019 02:45
Last Modified: 10 Sep 2019 04:07
Uncontrolled Keywords: photometric, planetary systems, stars, HATS-59, spectroscopic
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Identification Number or DOI: 10.3847/1538-3881/aade54
URI: http://eprints.usq.edu.au/id/eprint/36383

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