The 3000 SEC X-ray variations of GK Per: Evidence for transition fronts in the inner accretion disk

Details The 3000 SEC X-ray variations of GK Per: Evidence for transition fronts in the inner accretion disk The 3000 SEC X-ray variations of GK Per: Evidence for transition fronts in the inner accretion disk

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.236..221d&link_type=abstract

In ESA Recent Results on Cataclysmic Variables p 221-222 (SEE N86-20287 10-93)

Physics

1

Cataclysmic Variables, Dwarf Novae, Light Curve, Light Modulation, Periodic Variations, X Rays, Accretion Disks, Stellar Mass, Stellar Radiation

Scientific paper

The 3000 sec modulation of the X-ray light curve of GK Per in the 1983 outburst is discussed. It is suggested that the timescale of running accretion fronts in the limited region lies between the thermal timescale and the diffusion timescale through the disk. The small instable region contributes only very little to the optical light (of order 1/100). The observed modulation of the optical light by 5% to 8% over 3000 sec could be understood as an effect of disk irradiation which varies with the central mass flow.

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