Abstract
view Abstract Citations (8) References (6) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Limits to the Spectra of the Perseus and Coma Clusters above 7 keV from the OSO-7. Ulmer, M. P. ; Baity, W. A. ; Wheaton, W. A. ; Peterson, L. E. Abstract Observations of the Coma and Perseus clusters were made with the UCSD OS 0-7 X-ray telescope. The 2 a upper limit to the 7-40 keV flux from the Coma cluster is <2 x 10-2 photons 1 Wefind the 7-26 keV flux from Perseus ( 3 a) to be 1.9 + 0.63 x 10-2 photons 1, and a 2 a upper limit to the 26-56 keV flux from the Perseus cluster to be 9 x 10- photons em -2 - . The data do not allow us to distinguish between various possible X-ray emission processes from the cluster. Subject headings: galaxies, clusters of - X-rays Publication: The Astrophysical Journal Pub Date: July 1973 DOI: 10.1086/152203 Bibcode: 1973ApJ...183...15U full text sources ADS | data products NED (3)
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