Outburst period-energy relations in cataclysmic novae

Details Outburst period-energy relations in cataclysmic novae Outburst period-energy relations in cataclysmic novae

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.305...33b&link_type=abstract

Nature (ISSN 0028-0836), vol. 305, Sept. 1, 1983, p. 33-36.

Astronomy and Astrophysics

Astronomy

39

Astronomical Photometry, Dwarf Novae, Flare Stars, Bursts, Light Curve, Periodic Variations, Relaxation Oscillators

Scientific paper

It is shown that the behavior of the dwarf nova SS Cygni is in close agreement with theoretical predictions of dynamically unstable states of a red star when it fills its Roche lobe, and is in conflict with the assumptions of early disk instability models. A statistical analysis of the star's outbursts is presented, obtaining the average width of outbursts, an excess of very narrow outbursts, correlation of burst width with visual magnitude, a correlation between width and following cycle-time, and a lack of correlation between width and preceding cycle time. An outburst energy-period relation is analytically obtained for the following quiescent cycle of a red component instability model and compared with the observed eruption properties of SS Cygni.

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