On the stellar companion to the exoplanet hosting star 30 Arietis B

Kane, Stephen R. and Barclay, Thomas and Hartmann, Michael and Hatzes, Artie P. and Jensen, Eric L. N. and Ciardi, David R. and Huber, Daniel and Wright, Jason T. and Quintana, Elisa V. (2015) On the stellar companion to the exoplanet hosting star 30 Arietis B. The Astrophysical Journal, 815 (1). pp. 32-40. ISSN 0004-637X

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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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Access to published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: No Faculty
Date Deposited: 09 Jun 2017 07:31
Last Modified: 27 Jun 2017 00:25
Uncontrolled Keywords: planetary systems; stars; 30 Ari B; high angular resolution; photometric; radial velocities
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020102 Astronomical and Space Instrumentation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1088/0004-637X/815/1/32
URI: http://eprints.usq.edu.au/id/eprint/32196

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