Document Type

Article

Publication Date

12-3-2015

Published In

Astrophysical Journal

Abstract

A crucial aspect of understanding planet formation is determining the binarity of the host stars. Results from radial velocity (RV) surveys and the follow-up of Kepler exoplanet candidates have demonstrated that stellar binarity certainly does not exclude the presence of planets in stable orbits and the configuration may in fact be relatively common. Here we present new results for the 30 Arietis system which confirms that the B component hosts both planetary and stellar companions. Keck AO imaging provides direct detection of the stellar companion and additional RV data are consistent with an orbiting star. We present a revised orbit of the known planet along with photometry during predicted transit times. Finally, we provide constraints on the properties of the stellar companion based on orbital stability considerations.

Keywords

planetary systems, stars: individual (30 Ari B), techniques: high angular resolution, techniques: photometric, techniques: radial velocities

Comments

This work is freely available courtesy of the American Astronomical Society and IOP Publishing.

Download

Share

COinS