Abstract
view Abstract Citations (17) References (39) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Low energy X-ray emission from five galaxy cluster sources. Reichert, G. ; Mason, K. O. ; Lea, S. M. ; Charles, P. A. ; Bowyer, S. ; Pravdo, S. Abstract We report the detection of soft (0.2-2.5 keV) X-ray emission from several known cluster X-ray sources using the low energy detectors of the HEAO 1 A-2 experiment. Soft X-ray emission was observed from five clusters - the Centaurus cluster, Abell 2147, SC 1329-314, Abell 2319, and Abell 133. Spectral parameters estimated from the soft X-ray fluxes are inconsistent with those reported at higher energies for the Centaurus cluster, Abell 2147, and SC 1329-314, indicating the presence of more than one spectral component in these clusters. No evidence for more than one component was found for either Abell 2319 or Abell 133. The temperature of Abell 133 is constrained to be less than 2 x 10 to the 7th K, making it the coolest X-ray cluster yet detected. Publication: The Astrophysical Journal Pub Date: August 1981 DOI: 10.1086/159092 Bibcode: 1981ApJ...247..803R Keywords: Emission Spectra; Galactic Clusters; X Ray Sources; Cosmic Gases; Gas Temperature; Heao 1; Intergalactic Media; Spaceborne Astronomy; Astronomy full text sources ADS | data products SIMBAD (5) NED (5)
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