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Title:
Discovery of an accretion shock cone in 22 Vulpeculae
Authors:
Ahmad, I. A.; Parsons, S. B.
Affiliation:
AA(Imad-ad-Dean, Inc., Bethesda, MD), AB(Space Telescope Science Institute, Baltimore, MD)
Publication:
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 299, Dec. 1, 1985, p. L33-L35. (ApJL Homepage)
Publication Date:
12/1985
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Dwarf Stars, Eclipsing Binary Stars, Hot Stars, Shock Waves, Stellar Mass Accretion, Supergiant Stars, Absorption Spectra, Iue, Magnesium, Spaceborne Astronomy
DOI:
10.1086/184575
Bibliographic Code:
1985ApJ...299L..33A

Abstract

A previous report that 22 Vul is a zeta Aurigae-type eclipsing binary is supported by the discovery of evidence for an accretion shock cone in 22 Vul similar to those found in zeta Aurigae and 32 Cygni. Such systems consist of a cool supergiant star primary and a hot dwarf secondary (G3 Ib-II and B9 in the case of 22 Vul) and undergo atmospheric eclipses.

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