Stellar pulsation: challenges for theory and observation vol:1170 pages:376-378
AIP Conference Proceedings
International Conference on Stellar Pulsation - Challenges for Theory and Observation Santa Fe, NM, MAY 31-JUN 05, 2009
We present a unique observational study of Spica, a binary system with a primary component of the beta Cephei type. We exploit simultaneous high-resolution spectroscopic observations and high-precision photometry obtained by the MOST satellite. An important result is that the MOST photometry reveals Spica as an eclipsing binary contrary to what was quoted in the literature.