Limits to Tertiary Astrometric Companions in Binary Systems

Abstract

The Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) has monitored 37 sub-arcsecond binary systems to determine whether their Keplerian orbits are perturbed by faint astrometric companions to either star. Software has been developed to evaluate the regions in a companion mass-period phase space in which the PHASES observations can exclude the possibility of face-on orbit perturbations. We present results for 8 systems for which astrometric companions with masses as small as those of giant planets can be excluded.

Accepted to ApJ, emulateapj 15 pages

References in corpus (12)

• A Planetary Companion to gamma Cephei A
• The Palomar Testbed Interferometer
• Planet formation is unlikely in equal mass binary systems with a ~ 50 AU
• Multi-order TODCOR: application to observations taken with the CORALIE echelle spectrograph
• Impact of Stellar Dynamics on the Frequency of Giant Planets in Close Binaries
• Planets in triple star systems--the case of HD188753
• Differential Astrometry of Sub-arcsecond Scale Binaries at the Palomar Testbed Interferometer
• Cluster Origin of Triple Star HD 188753 and its Planet
• An Interferometric Search for Bright Companions to 51 Pegasi
• PHASES Differential Astrometry and the Mutual Inclination of the V819 Herculis Triple Star System
• PHASES Differential Astrometry and Iodine Cell Radial Velocities of the kappa Pegasi Triple Star System
• PHASES High Precision Differential Astrometry of delta Equulei

Cited by in corpus (9)

• The Radial Velocity TATOOINE Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-lined Binary Stars - Initial Results from Keck I/Hires, Shane/CAT/Hamspec and TNG/Sarg Observations
• Masses, Luminosities, and Orbital Coplanarities of the mu Orionis Quadruple Star System from PHASES Differential Astrometry
• Detection and Characterization of Planets in Binary and Multiple Systems
• VISION: A Six-Telescope Fiber-Fed Visible Light Beam Combiner for the Navy Precision Optical Interferometer
• The orbits of the quadruple star system 88 Tau A from PHASES differential astrometry and radial velocity
• The radius and effective temperature of the binary Ap star beta CrB from CHARA/FLUOR and VLT/NACO observations
• Detection and Characterization of Planetary Systems with $\mu$as Astrometry
• The PHASES Differential Astrometry Data Archive IV: The Triple Star Systems 63 Gem A and HR 2896
• The PHASES Differential Astrometry Data Archive. III. Limits to Tertiary Companions