Physical Conditions in the Accretion Disk of V603 Aquilae

Authors

Gary J. Ferland, University of KentuckyFollow
D. L. Lambert, University of Texas
M. L. McCall, University of Texas
G. A. Shields, University of Texas
M. Slovak, University of Texas

Abstract

Ultraviolet and optical spectra of the old nova V603 Aql are discussed. The UV-optical continuum is dominated by emission from the accretion disk. Emission lines from ions of H, He, C, N, and 0 are identified. These lines are probably formed in a circumstellar shell with radius comparable to the binary separation, density ~10¹⁰ cm^-3, and a roughly solar chemical composition. This corona is probably heated by radiation emitted by the underlying accretion disk. Photoionization calculations of the structure and emission-line spectrum of the corona are presented, and the effects of this gas on the X-ray continuum are discussed.

Document Type

Article

Publication Date

9-15-1982

Notes/Citation Information

Published in The Astrophysical Journal, v. 260, no. 2, p. 794-806.

© 1982. The American Astronomical Society. All rights reserved.

The copyright holder has granted permission for posting the article here.

Digital Object Identifier (DOI)

http://dx.doi.org/10.1086/160298

Repository Citation

Ferland, Gary J.; Lambert, D. L.; McCall, M. L.; Shields, G. A.; and Slovak, M., "Physical Conditions in the Accretion Disk of V603 Aquilae" (1982). Physics and Astronomy Faculty Publications. 184.
https://uknowledge.uky.edu/physastron_facpub/184