THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. V. CANDIDATE SUBSTELLAR COMPANIONS TO BINARY SYSTEMS

Abstract

The Palomar High-precision Astrometric Search for Exoplanet Systems monitored\n51 subarcsecond binary systems to evaluate whether tertiary companions as small\nas Jovian planets orbited either the primary or secondary stars, perturbing\ntheir otherwise smooth Keplerian motions. Six binaries are presented that show\nevidence of substellar companions orbiting either the primary or secondary\nstar. Of these six systems, the likelihoods of two of the detected\nperturbations to represent real objects are considered to be "high confidence",\nwhile the remaining four systems are less certain and will require continued\nobservations for confirmation.\n