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X-ray emission from normal galaxiesThe results of Einstein Observatory studies of X-ray emission from normal galaxies, including the LMC and SMC, M31, M33, M101, NGC 247, M81 and M100, and N253 are surveyed. The X-ray luminosity of normal galaxies is proportional to their optical luminosity, revealing no strong dependence on galaxy type. The number of individual sources detected are comparable to the number of sources expected on mass considerations. There are substantial numbers of X-ray sources in the Magellanic Clouds with luminosities in the range 10 to the 35th-36th ergs/s, lower than most X-ray binaries but higher than known uncollapsed stellar systems. About seven X-ray sources with luminosities of at least 10 to the 39th ergs/s in the 0.5-3.0 keV band have been found in the arms of nearby spiral galaxies.
Document ID
19840052792
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Long, K. S.
(Columbia University New York, NY, United States)
Van Speybroeck, L. P.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Astrophysics
Accession Number
84A35579
Funding Number(s)
CONTRACT_GRANT: NAS8-30751
CONTRACT_GRANT: NAS8-30753
Distribution Limits
Public
Copyright
Other

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