Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.131..765s&link_type=abstract
(IAU, Colloquium on Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments, 93rd, Bamberg, West
Astronomy and Astrophysics
Astronomy
4
Ground Truth, Satellite Observation, Spectral Energy Distribution, Stellar Spectrophotometry, Symbiotic Stars, Variable Stars, Accretion Disks, Black Body Radiation, Spaceborne Astronomy, Stellar Models
Scientific paper
Ground-based observations are combined with satellite observations from Einstein, IUE, and IRAS to obtain the quiescent energy distribution of the symbiotic star AG Draconis, and comparison is made between the observations and various steady-state composite models, both with and without blackbody accretion disks. The observational data are accounted for by the model of a white-dwarf-like primary and a k5 giant secondary, with the system embedded in a dense, warm circumsystem nebulosity. The primary may be surrounded by a low-luminosity wind-fed accretion disk at quiescence, and the eruptions seem to be associated with the primary or the accretion disk.
Anderson Martha C.
Cassinelli Joe P.
Lambert David L.
Slovak Mark H.
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