The Central X-ray Point Source in Cassiopeia A


The spectacular “first light” observation by the Chandra X-Ray Observatory revealed an Xray point source near the center of the 300 yr old Cas A supernova remnant. We present an analysis of the public X-ray spectral and timing data. No coherent pulsations were detected in the Chandra/HRC data. The 3σ upper limit on the pulsed fraction is <35% for P > 20 ms… (More)


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