Extragalactic X-ray Sources and Associations of Galaxies

Details Extragalactic X-ray Sources and Associations of Galaxies Extragalactic X-ray Sources and Associations of Galaxies

Jun 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971natur.231..437c&link_type=abstract

Nature, Volume 231, Issue 5303, pp. 437-438 (1971).

Computer Science

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Scientific paper

RESULTS from sounding rocket experiments, confirmed and extended by data from the UHURU satellite, have revealed the existence of cosmic X-ray sources at high galactic latitude which apparently coincide with well known external galaxies. The first of these reported was M87 (ref. 1) followed by NGC-5128 and 3C273 (ref. 2). More recently NGC1275 (refs. 3 and 4) and NGC4151 (ref. 4) have been reported to be X-ray sources. Finally, a source has been reported in the direction of the Coma Cluster which has not yet been associated with a single galaxy (paper presented by H. G., E. M. Kellogg, C. Leong, H. Tananbaum and R. Giacconi at Amer. Phys. Soc. Meeting, March/April 1971). The results from UHURU on these and other subjects are listed in Table 1.

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