NASA NTRS · 19920053330
Coronal X rays from single, magnetic white dwarfs - A search and probable detection
Abstract
X-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.
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Arnaud, Keith A., Zhelezniakov, Vladimir V., Trimble, Virginia. 1992-04-01. Coronal X rays from single, magnetic white dwarfs - A search and probable detection. https://ntrs.nasa.gov/citations/19920053330
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