Mass transfer rate and outburst cycle of SS Cygni

Details Mass transfer rate and outburst cycle of SS Cygni Mass transfer rate and outburst cycle of SS Cygni

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...412l..41h&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 412, no. 1, p. L41, L42.

Astronomy and Astrophysics

Astrophysics

2

Dwarf Novae, Mass Transfer, Stellar Activity, Stellar Mass Accretion, Light Curve, Periodic Variations, Stellar Oscillations

Scientific paper

From an analysis of the SS Cygni light curve, we have recently shown (Hempelmann & Kurths, 1990) that the rate of mass transfer, M-dot(T), from the secondary star to the white dwarf primary is inversely correlated with the outburst cycle, t(c). This has been criticized as being of a trivial nature by Cannizzo & Mattei (1992). We demonstrate the nontrivial character of our finding by means of a gedankenexperiment which is based on the static outburst parameters observed. We show in this experiment that a positive M-dot(T)-t(c) correlation is possible. The negative correlation found by Hempelmann & Kurths (1990) is a consequence of the dynamics of small and strong outbursts.

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