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Rosat Observations of Nine Globular ClustersThe ROSAT HRI was used to image fields around nine Galactic globular clusters that have central densities in the range of 10(exp 4) - 10(exp 5) solar mass pc(exp -3) and that had not previously been observed with the Einstein Observatory. We detected X-ray sources associated with Pal 2 and NGC 6304 with luminosities of 1.1 x 10(exp 34) ergs/s and 1.2 x 10(exp 33) ergs/s, respectively. No X-ray emission was detected from the source in Ter 6, thus confirming its transient nature. In all, there were 23 serendipitous sources found in the nine fields; none was apparently associated with any of the other seven clusters. The results are discussed in the context of low-luminosity cluster X-ray sources, in general.
Document ID
19970011214
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rappaport, S.
(Massachusetts Inst. of Tech. Cambridge, MA United States)
Dewey, D.
(Massachusetts Inst. of Tech. Cambridge, MA United States)
Levine, A.
(Massachusetts Inst. of Tech. Cambridge, MA United States)
Macri, L.
(Massachusetts Inst. of Tech. Cambridge, MA United States)
Date Acquired
August 17, 2013
Publication Date
March 10, 1994
Publication Information
Publication: The Astrophysical Journal
Publisher: The American Astronomical Society
Issue: 423
Subject Category
Astronomy
Report/Patent Number
NASA-CR-203363
NAS 1.26:203363
Accession Number
97N70771
Funding Number(s)
CONTRACT_GRANT: NAG7-62
CONTRACT_GRANT: NAS8-39073
CONTRACT_GRANT: NAGw-1545
CONTRACT_GRANT: NsG-7643
Distribution Limits
Public
Copyright
Public Use Permitted.
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