Computer Science – Numerical Analysis
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...378..665i&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 378, Sept. 10, 1991, p. 665-673. Research supported by NSF, NASA, and Resea
Computer Science
Numerical Analysis
12
Cataclysmic Variables, Magnetic Stars, Shock Waves, Stellar Oscillations, Stellar Spectra, White Dwarf Stars, X Ray Binaries, Hydrodynamics, Mass Transfer, Numerical Analysis, Stellar Luminosity, Time Dependence, X Ray Spectra
Scientific paper
The hypothesis that quasi-periodic oscillations (QPOs) are due to the oscillatory instability of radiative shock waves discovered by Langer et al. (1981, 1092) is examined. The time-dependent optical spectra of oscillating radiative shocks produced by flows onto magnetic white dwarfs are calculated. The results are compared with the observations of the AM Her QPO sources V834 Cen, AN UMa, EF Eri, and VV Pup. It is found that the shock oscillation model has difficulties with aspects of the observations for each of the sources. For VV Pup, AN UMa, and V834 Cen, the cyclotron luminosities for the observed magnetic fields of these systems, based on our calculations, are large. The strong cyclotron emission probably stabilizes the shock oscillations. For EF Eri, the mass of the white dwarf based on hard X-ray observations is greater than 0.6 solar mass.
Imamura James N.
Rashed Hussain
Wolff Michael Thomas
No associations
LandOfFree
The optical emission from oscillating white dwarf radiative shock waves 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 The optical emission from oscillating white dwarf radiative shock waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The optical emission from oscillating white dwarf radiative shock waves will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1334613