Computer Science
Scientific paper
Jul 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6079m&link_type=abstract
HST Proposal ID #6079
Computer Science
Hst Proposal Id #6079 Hot Stars
Scientific paper
We shall monitor wind-formed UV lines in the highly inclined disk-accreting CV, UX UMa as they are eclipsed by the companion star. By measuring the way in which lines from several different ionic species change in shape and strength as the wind is progressively covered, we will probe its ionisation structure as well as its geometry and kinematics. The data will be compared with the results of Monte Carlo simulation of the line profiles to provide quantitative constraints on outflow collimation, acceleration, and mass- loss rate. Our goal is to build a full and self consistent model for the wind and to determine where in the system the wind originates {e.g. white dwarf, boundary layer, or disk}. We will then be in a position to investigate what drives the wind and the effect it has on the underlying accretion disk structure. The proposal builds on highly successful observations of UX UMa begun by us in Cycle 2 in a restricted wavelength range. Repairs to the GHRS now permit its full potential for such a study to be realised.
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