Theoretical decay rates of cataclysmic variable eruptions

Details Theoretical decay rates of cataclysmic variable eruptions Theoretical decay rates of cataclysmic variable eruptions

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.202..151m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 202, Jan. 1983, p. 151-157.

Astronomy and Astrophysics

Astronomy

25

Accretion Disks, Decay Rates, Dwarf Novae, Variable Stars, Binary Stars, Companion Stars, Light Curve, Mass Transfer, Time Dependence

Scientific paper

The relation between outburst decay time and binary period in dwarf novae is examined with time-dependent alpha-disk evolution models. Outbursts caused by variations in the mass transfer rate into the disk exhibit the same dependence on period as is observed, provided the mass transfer profile decays on a faster time-scale than the viscous evolution time-scale of the disk, and that alpha is approximately 1. The relation is a consequence of the increase in the time taken for matter to diffuse through larger disks in longer period systems.

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