Activity types for X-ray candidate AGN from SDSS

摘要

The Joint Catalogue of Hamburg ROSAT Sources (HRC/BHRC) is the result, of merging of HRC and BHRC catalogs built on the basis of optical identifications of ROSAT BSC and ROSAT FSC. Altogether, 8132 sources are present. Based on this catalogue, we have compiled a sample of ROSAT AGN, including candidate ones. In this paper we classify candidate AGN (those that previously had not been spectroscopically classified) by their activity type. The sample contains 955 objects with count rate of photons CR > 0.04 ct/s in the area with galactic latitudes |b| > 30 and declinations δ > 0, however only 217 objects have SDSS DR10 spectra. The classification led to the following results: 95 AGN, 71 absorption-line galaxies, 42 stars, and 9 unclassified objects.