Skip to Main content Skip to Navigation
Journal articles

Brown dwarf companion with a period of 4.6 yr interacting with the hot Jupiter CoRoT-20 b

Abstract : We report the discovery of an additional substellar companion in the CoRoT-20 system based on six years of HARPS and SOPHIE radial velocity follow-up. CoRoT-20 c has a minimum mass of 17 +/- 1 M-Jup and orbits the host star in 4.59 +/- 0.05 yr, with an orbital eccentricity of 0.60 +/- 0.03. This is the first identified system with an eccentric hot Jupiter and an eccentric massive companion. The discovery of the latter might be an indication of the migration mechanism of the hot Jupiter, via the Lidov-Kozai effect. We explore the parameter space to determine which configurations would trigger this type of interactions.
Complete list of metadata

https://hal-amu.archives-ouvertes.fr/hal-02057660
Contributor : Alexandre Santerne Connect in order to contact the contributor
Submitted on : Tuesday, March 5, 2019 - 2:53:38 PM
Last modification on : Friday, December 3, 2021 - 11:42:34 AM

Links full text

Identifiers

Citation

J. Rey, F. Bouchy, M. Stalport, M. Deleuil, G. Hébrard, et al.. Brown dwarf companion with a period of 4.6 yr interacting with the hot Jupiter CoRoT-20 b. Astronomy and Astrophysics, EDP Sciences, 2018, 619, pp.A115. ⟨10.1051/0004-6361/201833180⟩. ⟨hal-02057660⟩

Share

Metrics

Record views

158