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Evidence for X-ray emission from CapellaX-ray emission in the range from 0.2 to 1.6 keV has been detected from an area of the sky which contains the binary star system Capella. The X-ray source is at most a few arc minutes in extent and shows no spectral turnover at low energy, consistent with a nearby source. We suggest Capella as the source of this emission and that this object belongs to a new class of galactic X-ray sources with a luminosity of 10 to the 31st to 10 to the 34th ergs per sec. Emission from this class of objects is variable, predominantly below 2 keV, and originates from nearby stellar objects.
Document ID
19750042303
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Catura, R. C.
Acton, L. W.
Johnson, H. M.
(Lockheed Research Laboratories Palo Alto, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1975
Publication Information
Publication: Astrophysical Journal
Volume: 196
Subject Category
Space Radiation
Accession Number
75A26375
Funding Number(s)
CONTRACT_GRANT: NASW-2672
CONTRACT_GRANT: NASW-2414
Distribution Limits
Public
Copyright
Other

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