Eclipse Mapping of the Accretion Disk Wind in the Cataclysmic Variable UX Ursae Majoris

摘要

We present the results of an effort to model recent HST eclipse observations of the C Ⅳ 1550 A deg reso- nance line in the high-inclination nova-like cataclysmic variable UX UMa. Assuming this line to be pre- dominantly wind-formed, we are able to roughly reproduce the shapes and strengths of the observed line profiles (both away from and during eclipse) within the framework of a simple kinematic model in which the outflow is described as a rotating, biconical accretion disk wind. Our preferred model also matches most of the detailed behavior of different parts of the C Ⅳ line profile (blue wing, line center, and red wing) as a function of orbital phase.