Other
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...286..196c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 286, Nov. 1, 1984, p. 196-208. NSF-supported research.
Other
61
Binary Stars, Magellanic Clouds, X Ray Sources, Active Galaxies, Astronomical Catalogs, Milky Way Galaxy, Optical Measurement, Point Sources, X Ray Stars
Scientific paper
The results of a program of optical identification of the X-ray point sources in the direction of the Large Magellanic Cloud (LMC) are presented. Observational results are combined with accurate positions of about 3-arcsec obtained with the Einstein Observatory Imaging Proportional Counter (IPC). The sources include 13 foreground stars, three background active galaxies, and six LMC members which are known or suspected to be binaries. The 24 other sources in the Einstein LMC survey have only 30-arcsec positions and on average are less luminous and in more crowded regions of the LMC. On the basis of the new identifications, comparisons are made between the overall stellar X-ray population in the LMC and in the Galaxy. Although the mean X-ray luminosity of the LMC sources is significantly higher than that of the Galaxy, the total number of stellar X-ray systems per unit mass is similar in the LMC and the Galaxy.
Charles Phil A.
Cowley Anne Pyne
Crampton David
Hamilton Thomas T.
Helfand David J.
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