ON the STELLAR COMPANION to the EXOPLANET HOSTING STAR 30 ARIETIS B

Stephen R. Kane, Thomas Barclay, Michael Hartmann, Artie P. Hatzes, Eric L.N. Jensen, David R. Ciardi, Daniel Huber, Jason T. Wright, Elisa V. Quintana

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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.

Original languageEnglish (US)
Article number32
JournalAstrophysical Journal
Volume815
Issue number1
DOIs
StatePublished - Dec 10 2015

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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