Luminosity correlation of the x-ray selected radio-loud AGNs

This paper presents a test of the luminosity correlation of the Xray selected radio-loud Active Galactic Nuclei (AGNs), based on a large sample constructed by combining our cross-identification of southern sky sources with the radio-loud sources in the northern hemisphere given by Brinkmann et al. (1995). All sources were detected both by the ROSAT All-Sky Survey and the radio surveys at 4.85 GHz. The broad band energy distribution confirms the presence of strong correlations between luminosities in the radio, optical, and X-ray bands which differ for quasars, seyferts, BL Lacs, and radio galaxies. The tight correlations between spectral indices alpha(ox) and monochromatic luminosities at 5500 Angstrom and 4.85 GHz are also shown.