Ultraviolet Spectrophotometry and Optical and Infrared Photometry of the Old Nova GK Persei
Raymond, John C.; Wu, Chi-Chao; Swank, Jean H.; Hartmann, Lee W.; Holm, Albert V.; Panek, Robert J.
United States
Abstract
IUE observations in the 1150-3250-A region were obtained of GK Per during the rise, at the maximum, and during the decline of the 2.5-mag optical outburst in 1981. The results support previous predictions for the interaction of an accretion disk with the magnetic field of an accretion star. The luminosity at minimum is found to be 2.3 solar luminosities, with 1/3 of this being attributed to the cool secondary star.