WZ Sagittae - Recent observations leading to a model for superhump phenomena

Details WZ Sagittae - Recent observations leading to a model for superhump phenomena WZ Sagittae - Recent observations leading to a model for superhump phenomena

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236..854g&link_type=abstract

Astrophysical Journal, Part 1, vol. 236, Mar. 15, 1980, p. 854-861.

Astronomy and Astrophysics

Astrophysics

22

Dwarf Stars, Eclipsing Binary Stars, Novae, Radial Velocity, Stellar Models, Stellar Spectra, Emission Spectra, H Alpha Line, Stellar Mass Accretion, Stellar Spectrophotometry

Scientific paper

The short-period eclipsing binary system and recurrent nova WZ Sge (1913, 1946, 1978) was observed spectroscopically during its renewed 1978 December outburst. Absorption-line radial velocities and H-alpha emission profiles suggest a circumbinary 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.

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