Detection of a Hot Subdwarf Companion to the Be Star FY Canis Majoris
Detection of a Hot Subdwarf Companion to the Be Star FY Canis Majoris
The rapid rotation of Be stars may be caused in some cases by past mass and angular momentum accretion in an interacting binary in which the mass donor is currently viewed as a small, hot subdwarf stripped of its outer envelope. Here we report on the spectroscopic detection of such …