Spectra and evolution of two X-ray sources in M81
V. La Parola, G. Fabbiano, D. W. Kim, G. Peres
Abstract
We analyzed the spectral and temporal features of X-ray sources in M81 using data from the relevant ROSAT-PSPC/HRI observations. We discuss the main features of the point-like nucleus and of the second brightest source in the field (X-9), whose identification is still unclear.
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