Outbursts in dwarf novae accretion disks

Details Outbursts in dwarf novae accretion disks Outbursts in dwarf novae accretion disks

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...132..143m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 132, no. 1, March 1984, p. 143-150.

Astronomy and Astrophysics

Astrophysics

130

Accretion Disks, Dwarf Novae, Stellar Mass Accretion, Light Curve, Mass Flow, White Dwarf Stars

Scientific paper

Current theories regarding the outbursts in dwarf novae systems are considered, taking into account certain difficulties. The present investigation is concerned with an attempt to overcome these difficulties on the basis of a consideration of alpha-parameters which depend on the ratio (H/r). The presented model calculations show good agreement with light curves of dwarf novae systems. The variety of light curves observed can apparently be accounted for by mass accretion rates and accretion disk sizes which differ from system to system in a systematic way. Attention is given to the time-dependent diffusion equation, a model for U Geminorum, a model for OY Carinae, and a model for ultrashort period variables with a shorter duration of quiescence.

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