2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/2459We 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 acknowledgementsAstrophysicstext