On the implications of the period distributions of subclasses of cataclysmic variables

Details On the implications of the period distributions of subclasses of cataclysmic variables On the implications of the period distributions of subclasses of cataclysmic variables

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.290l..55v&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 290, Issue 3, pp. L55-L58.

Astronomy and Astrophysics

Astronomy

12

Binaries: Close, Stars: Evolution, Novae, Cataclysmic Variables

Scientific paper

The period distributions of dwarf novae and nova-like variables above the period gap are different if the VY Scl systems are classed with the nova-like variables, but the same when the VY Scl phenomenon is classed with the dwarf nova outbursts. For the remaining nova-like variables, the period gap is no longer significant. Classification of the VY Scl phenomenon with dwarf novae suggests that dwarf nova outbursts are caused by variation in mass transfer from the donor. Absence of the period gap obviates the need for models explaining it, and invalidates one piece of evidence for the importance of magnetic braking for the evolution of cataclysmic variables and of low-mass binaries in general.

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