Computer Science
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phdt.........5p&link_type=abstract
Ph.D. Thesis Texas Univ., Austin.
Computer Science
3
Light Curve, Stellar Radiation, Variable Stars, Eclipsing Binary Stars, Hercules Nova, Novae, Stellar Magnetic Fields, Stellar Rotation, White Dwarf Stars
Scientific paper
The rapid oscillations seen in the optical light curves of cataclysmic variables are examined. The discovery of a class of rapid periodic variable is noted of which DQ Herculis is the prototype. There are four members of this class: two classical novae, one nova-like variable, and one dwarf nova. Their periods range from 28 to 71 seconds, and their oscillations are essentially permanent features of the light curves. The oscillations are extraordinarily stable in period and phase, showing measurable changes only on time scales of years. A comprehensive study of the coherent oscillations seen in the eruption light curves of dwarf novae is also presented. The oscillations are typically seen for a few days near the peak of each dwarf nova eruption. The periods are in the range 8 to 39 seconds, with each star showing a characteristic, and much smaller, range of variation. Finally, a unified model is proposed in which both the DQ Her-type and the dwarf nova oscillations can be produced by the same basic mechanism in rapidly rotating white dwarfs with magnetic fields of 10 to the 5th to 10 to the 8th power gauss, and with time varying accretion rates.
No associations
LandOfFree
Rapid oscillations in cataclysmic variables does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rapid oscillations in cataclysmic variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid oscillations in cataclysmic variables will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1702850