Abstract
view Abstract Citations (84) References (43) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS SS CYG : the accretion disk in eruption and at minimum light. Kiplinger, A. L. Abstract Absolute spectrophotometric observations of the dwarf nova SS Cygni have been obtained at maximum light, during the subsequent decline, and at minimum light. In order to provide a critical test of accretion disk theory, a model for a steady-state α-model accretion disk has been constructed which utilizes a grid of stellar energy distributions to synthesize the disk flux. Physical parameters for the accretion disk at maximum light are set by estimates of the intrinsic luminosity of the system that result from a desynthesis of a composite minimum light energy distribution. At maximum light, agreements between observational and theoretical continuum slopes and the Balmer jump are remarkably good. The model fails, however, during the eruption decline and at minimum light. It appears that the physical character of an accretion disk at minimum light must radically differ from the disk observed at maximum light. Publication: The Astrophysical Journal Pub Date: December 1979 DOI: 10.1086/157584 Bibcode: 1979ApJ...234..997K Keywords: Astronomical Spectroscopy; Binary Stars; Dwarf Stars; Stellar Luminosity; Stellar Mass Accretion; Balmer Series; Disks (Shapes); Spectral Energy Distribution; Spectrum Analysis; Stellar Models; Stellar Rotation; Astrophysics full text sources ADS | data products SIMBAD (2)
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