The PHASES Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems

Details The PHASES Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems The PHASES Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems

2010-10-19

arxiv.org/abs/1010.4048v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

16 Pages, Accepted to AJ

Scientific paper

The Palomar High-precision Astrometric Search for Exoplanet Systems monitored 51 subarcsecond binary systems to evaluate whether tertiary companions as small as Jovian planets orbited either the primary or secondary stars, perturbing their otherwise smooth Keplerian motions. Six binaries are presented that show evidence of substellar companions orbiting either the primary or secondary star. Of these six systems, the likelihoods of two of the detected perturbations to represent real objects are considered to be "high confidence", while the remaining four systems are less certain and will require continued observations for confirmation.

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