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Coronal X rays from single, magnetic white dwarfs - A search and probable detectionX-ray emission from a sample of five nearby (6-20 pc), strongly magnetic (10-200 MG), relatively cool (6000-14,000 K), single white dwarfs, two of which may possess coronae was explored. One star (GR 290) at better than 99-percent confidence is detected and upper limits from Einstein Observatory IPC data for four others are given. The detected luminosities and limits are in the range 1.4-12.5 x 10 exp 27 ergs/s.
Document ID
19920053330
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Arnaud, Keith A. (NASA Goddard Space Flight Center Greenbelt; Maryland, University, College Park, United States)
Zhelezniakov, Vladimir V. (Russian Academy of Sciences Applied Physics Institute, Nizhni Novgorod, Russia)
Trimble, Virginia (Maryland, University College Park; California, University, Irvine, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 104
Issue: 674,
ISSN: 0004-6280
Subject Category
Astrophysics
Accession Number
92A35954
Distribution Limits
Public
Copyright
Other

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