Eclipses of Cataclysmic Variable Stars

Details Eclipses of Cataclysmic Variable Stars Eclipses of Cataclysmic Variable Stars

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3238b&link_type=abstract

HST Proposal ID #3238

Physics

Hst Proposal Id #3238

Scientific paper

The cataclysmic variables are close binary stars consisting of a late-type star and white dwarf. Mass is being transferred from the late-type star to the white dwarf. Unless the white dwarf has an extremely strong magnetic field, the transferred mass forms an accretion disk around the white dwarf. An important reason to observe the cataclysmic variables is that they provide an unparalled way to study nearly all aspects of the accretion of gas onto compact objects. We propose to observe the eclipses of several cataclysmic variables. The eclipse light curves can be used to find information about the geometry and physical conditions in the accretion disk. One star we propose to observe, Z Cha, is a dwarf nova. Eclipse observations of this star will provide information about changes in the structure of the accretion disk over the outburst cycle. Revision History: Prepared for future cycles submission -- BJW 4/22/92;

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