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WZ Sge: Recent Observations Leading to a Model for Superhump Phenomena*

Published online by Cambridge University Press:  12 April 2016

R. L. Gilliland  and
E. Kemper
R. L. Gilliland
Affiliation:
Lick Observatory, Board of Studies In Astronomy and Astrophysics, University of California, Santa Cruz
E. Kemper
Affiliation:
Lick Observatory, Board of Studies In Astronomy and Astrophysics, University of California, Santa Cruz

Abstract

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The short period eclipsing binary system and recurrent nova WZ Sge (1913, 1946, 1978) was observed spectroscopically during its renewed, December 1978 outburst. Absorption line radial velocities and Hα emission profiles suggest a clrcumblnary gaseous disk. A schematic model is presented to explain both the observed radial velocities and the photometric properties of WZ Sge during outburst. The model also accounts for ‘superhump’ phenomena in SU UMa type dwarf novae.

Type
Colloquium Session VII
Information
International Astronomical Union Colloquium , Volume 53: White Dwarfs and Variable Degenerate Stars , August 1979 , pp. 458
Copyright
Copyright © The University of Rochester 1979