Line Eclipse Mapping of AN Accretion Disk Wind

Details Line Eclipse Mapping of AN Accretion Disk Wind Line Eclipse Mapping of AN Accretion Disk Wind

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3578m&link_type=abstract

HST Proposal ID #3578

Astronomy and Astrophysics

Astrophysics

Hst Proposal Id #3578

Scientific paper

We propose to measure changes in the profiles of wind-formed lines in the nova-like variable UX UMa as they are eclipsed by the companion star. Models predict that these changes are dramatic when viewed at high enough spectral resolution, and the measurements we make will allow us to map out the kinematics and density profile of an accretion disk wind for the first time. By comparing lines of different species we will determine the ionization structure of the wind, which is important for determining the total mass-loss rate. The proposed observations are well suited to the capabilities of the GHRS on HST, and will provide the raw material for a quantum leap in our understanding of accretion disk winds, a phenomenon encountered in a wide range of astrophysical settings.

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