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The Algol-like binary TT Hydrae - The stars, circumstellar matter, and superionized plasmaThis paper reports on superionized UV emission lines discovered in TT Hydrae (HD 97528), a semidetached eclipsing binary system in the Southern-Hemisphere sky. The list of emission lines observed is typical for interacting nondegenerate binaries of the Algol type, but with system-specific relative-intensity characteristics. The primary component of the system is a B9.5 V main-sequence star with effective temperature of 9800 K. Its mass equals 2.25 solar masses; the radius is 1.9 solar radii; and surface gravity log g equals 4.23. The secondary star has a mass of 0.41 solar mass and fills its critical Roche lobe. Evidence obtained on mass interaction supports the conclusion that HD 97528 is a normal semidetached system.
Document ID
19880059722
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Plavec, Mirek J. (California, University Los Angeles, United States)
Date Acquired
August 13, 2013
Publication Date
August 1, 1988
Publication Information
Publication: Astronomical Journal
Volume: 96
ISSN: 0004-6256
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF AST-82-00046
CONTRACT_GRANT: NSG-5272
Distribution Limits
Public
Copyright
Other