The locations of X-ray sources in globular clusters

Details The locations of X-ray sources in globular clusters The locations of X-ray sources in globular clusters

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231l.125j&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 231, Aug. 1, 1979, p. L125-L129.

Astronomy and Astrophysics

Astrophysics

27

Globular Clusters, Position (Location), X Ray Sources, Collimators, Sas-3, Star Distribution

Scientific paper

The SAS 3 X-ray observatory has been used to measure the positions of the X-ray sources in the globular clusters NGC 1851, 6441, 6624, 6712, and 7078. The derived positions have error circles with 90% confidence radii of 10 or 30 arcsec, which, in each case, include the optical center of the cluster. The results of a statistical analysis demonstrate that the X-ray sources are more concentrated toward the cluster centers than the visible stars and are therefore more massive than those stars.

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