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V649 Cassiopeiae: A Multiple Star System?
W. Van Hamme
Publications of the Astronomical Society of the Pacific
Vol. 104, No. 674 (1992 April), pp. 242-245
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40679853
Page Count: 4
You can always find the topics here!Topics: Light curves, Stellar classification, Colors, Spectroscopy, Stellar masses, Stellar radii, Astronomical objects, Mass ratio, Apparent magnitude, Phase shift
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Previously published light and radial-velocity curves of the eclipsing and spectroscopic binary V649 Cassiopeiae are reexamined using the Wilson-Devinney program. Two solutions are presented, both leading to typical B-type masses and radii for the two components. One of the solutions calls for large amounts of third light (42% of the total light in V, 46% in B). We speculate about the possible nature of this source of third light, and we plead for new photometric and spectroscopic observations of this bright (V=6.53) system.
Publications of the Astronomical Society of the Pacific © 1992 The University of Chicago Press