Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems

  title={Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems},
  author={Deepak Raghavan and Todd J. Henry and Brian D. Mason and John P. Subasavage and W. C. Jao and Thomas D. Beaulieu and Nigel C. Hambly},
  journal={The Astrophysical Journal},
  pages={523 - 542}
We present results of a reconnaissance for stellar companions to all 131 radial velocity-detected candidate extrasolar planetary systems known as of 2005 July 1. Common proper-motion companions were investigated using the multiepoch STScI Digitized Sky Surveys and confirmed by matching the trigonometric parallax distances of the primaries to companion distances estimated photometrically. We also attempt to confirm or refute companions listed in the Washington Double Star Catalog, in the… 
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