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Five-color band ultraviolet photometry of fourteen close binariesPhotometric observations obtained with the Astronomical Netherlands Satellite in five ultraviolet wavelength regions for 14 close binaries are presented. Strong excess far-ultraviolet flux is detected in four objects. The binaries TT Hya, RX Cas, and SX Cas exhibit a pronounced excess of far-ultraviolet flux, which is thought to be the result of mass transfer phenomena in these systems. Observations of the binary R Ara show very peculair variations; its far ultraviolet flux at 1550 A brightened by 0.4 mag between phases 0.7 and 0.8, while its near ultraviolet flux at 3300 A decreased by 0.5 mag over this same half-day interval. The A0 II-III component in the system RZ Sct is seen to dominate the ultraviolet spectrum.
Document ID
19820041593
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kondo, Y.
(NASA Goddard Space Flight Center Laboratory for Astronomy and Astrophysics, Greenbelt, MD, United States)
Mccluskey, G. E.
(Lehigh University Bethlehem, PA, United States)
Wu, C.-C.
(Computer Sciences Corp. Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
December 1, 1981
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 47
Subject Category
Astronomy
Accession Number
82A25128
Distribution Limits
Public
Copyright
Other

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