Oct 19

"The Exoplanet Host Stars XO-3 and gamma Cep - We're Astrometry and We're here to Help"
Fritz Benedict, University of Texas at Austin

In which I present progress reports on two ongoing investigations - obtaining an accurate and precise parallax for XO-3, with which to constrain the stellar radius (thus the planetary companion radius); and measuring the inclination of gamma Cep b. The latter will both inform the mass of companion b and establish the architecture of this binary (AB) and the planetary system (Ab).