Spectra and evolution of two X-ray sources in M81

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.

2 pages, 2 figures. To be published in the proceedings of "Galaxy disks and disk galaxies" (Rome, June 2000); added acknowledgements