Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247..577s&link_type=abstract
Astrophysical Journal, Part 1, vol. 247, July 15, 1981, p. 577-589.
Astronomy and Astrophysics
Astronomy
71
Binary Stars, Dwarf Novae, Iue, Stellar Mass Accretion, Stellar Spectra, Stellar Spectrophotometry, White Dwarf Stars, Emission Spectra, Infrared Astronomy, Line Spectra, Stellar Magnitude, Ultraviolet Astronomy
Scientific paper
The dwarf novae are a class of close binary systems with a G-M star transferring mass to a white dwarf. The transferred material accumulates in a disk and accretes onto the white dwarf. Dwarf novae are characterized by outbursts on time scales of weeks to months possibly triggered by instabilities in the disk. To test the steady state models and the behavior of the disk at various stages of the outburst cycle, IUE observations were conducted for eight dwarf novae. Selected UV continuum points were joined to nonsimultaneous optical and IR spectrophotometry and broad-band photography to yield flux distributions over a large wavelength range. These flux distributions are discussed in terms of available accretion disk models.
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