HATS-59b,c: A Transiting Hot Jupiter and a Cold Massive Giant Planet around a Sun-like Star*

2018/05/15 by P. Sarkis, Th. Henning, J. D. Hartman +27
Physics and Astronomy · #Astronomy and Astrophysical Research #Circular orbit #Giant planet #Hot Jupiter #Jupiter (rocket family) #Orbit (dynamics) #Outer planets #Planet #RADIUS #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph.EP

paper · pdf · doi:10.3847/1538-3881/aade54

12 pages, 9 figures, submitted to AJ. For a short discussion, see https://sites.google.com/view/paulasarkis/research/hats-59

arxiv created 2018/05/15 · openalex created_date 2018/06/01 · openalex publication_date 2018/10/18 · arxiv updated 2018/11/14 · openalex updated_date 2026/08/06

Abstract

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 , orbiting a mag solar-like star ( = and ) with a period of days. The outer companion, HATS-59c is on a circular orbit with and a period of 1422 ± 14 days. The inner planet has a mass of and a radius of , yielding a density of . 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.

Citations

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