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eJAAVSO

The RXTE, ROSAT, IUE, EUVE, Optical Campaign Covering the 45-Day Supercycle of V1159 Orionis (Abstract)

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Paula Szkody
University of Washington, Seattle, WA 98195

Kent Honeycutt
Jeff Robertson

Indiana University, Bloomington, IN 47405

Andrew Silber
D. W. Hoard
Lora Pastwick

University of Washington, Seattle, WA 98195

Ivan Hubeny
John Cannizzo

National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, MD 20771

William Liller
Viña del Mar, Chile

Ronald Zissell
Mt. Holyoke College, South Hadley, MA 01075

Gary Walker
Sherborn, MA 02030

Constanze la Dous
Sternwarte Sonneberg, 96515 Sonneberg, Germany

Janet Drew
Imperial College, London, SW7 2BZ, England

Abstract
A comprehensive data set covering the superoutburst and 8 outbursts of the 45-day supercycle of the dwarf nova V1159 Ori was obtained in February-March 1996. The use of RXTE, ROSAT, IUE, and EUVE satellites, combined with ground- based optical photometry and spectroscopy, provided a broad picture of the accretion disk at different states. Results include an inverse correlation of the X-ray with the UV/optical fluxes, an outflowing wind during all outbursts, and large changes in the disk spectrum on time scales of less than a day. These results are compared to other dwarf novae and general theories of dwarf nova outbursts.

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