The pre-outburst state of dwarf novae

Details The pre-outburst state of dwarf novae The pre-outburst state of dwarf novae

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...194..135m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 194, no. 1-2, April 1988, p. 135-142.

Astronomy and Astrophysics

Astrophysics

11

Accretion Disks, Binary Stars, Cataclysmic Variables, Dwarf Novae, Stellar Mass Ejection, Angular Momentum, Stellar Luminosity, Stellar Spectra

Scientific paper

The paper presents data on the evolution of the accretion disk during an outburst cycle. Observations of the early rise to outburst in VW Hydri indicate that the disk has effective temperatures around 6000 K in this stage. Outburst computations based on constant alpha values for the cool disk reveal that the disk instability model predicts such temperatures in extended outer disk regions. It is noted that the detailed temperature distribution before the onset of the instability is determined by the shape of the f-Sigma relation.

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