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1994PASP..106.1075R - Publ. Astron. Soc. Pac., 106, 1075-1084 (1994/October-0)
Long-term periods in cataclysmic variables.
RICHMAN H.R., APPLEGATE J.H. and PATTERSON J.
Abstract (from CDS):
We propose that the observed light variations on decade timescales are produced by the same mechanism which underlies the decade-timescale orbital period changes seen in eclipsing binaries. In particular, we extend a theory of P_orb changes to the case of accretion-powered binaries, and show that it predicts accretion rate variations of amplitude delta-M/M ~= 0.1, consistent with observation. The proximate cause of the P_orb and M variations is the cyclic transfer of angular momentum to and from the outer layers of the contact star. The underlying cause of these phenomena is solar-type cycles of the contact star.
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Simbad objects: 23
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