An X-ray survey of a complete sample of 3CR radio galaxies

Abstract

view Abstract Citations (201) References (100) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS An X-ray survey of a complete sample of 3CR radio galaxies. Fabbiano, G. ; Miller, L. ; Trinchieri, G. ; Longair, M. ; Elvis, M. Abstract The X-ray survey of the galaxies, 40 in all, was made with the Einstein Observatory. By comparing the distributions of X-ray luminosities, it is found that 3CR galaxies with double radio morphology (FR 2) and optical emission-line spectra tend to be the more powerful X-ray emitters, with broad-line galaxies at the top of the distribution. It is also found that the X-ray luminosity is strongly correlated with the 5 GHz radio nuclear luminosity. Through an analysis of the complete optical and radio sample with the Spearman partial rank correlation technique, it is determined that nuclear radio luminosity at 5 GHz is correlated with both total radio luminosity at 178 MHz and with galaxy optical luminosity. Other weaker correlations are found of the X-ray luminosity with the total radio luminosity at 178 MHz and the optical luminosity of the galaxy. The results are seen as underlining the importance of nuclear phenomena in radio galaxies and indicating a nuclear origin of their X-ray emission. In addition, it is found that the 3CR emission-line galaxies are similar to both Seyfert galaxies and quasars with double radio morphology in their X-ray properties, strongly reinforcing a unified picture of active nuclei. Publication: The Astrophysical Journal Pub Date: February 1984 DOI: 10.1086/161676 Bibcode: 1984ApJ...277..115F Keywords: Galactic Nuclei; Luminosity; Radio Galaxies; X Ray Sources; Elliptical Galaxies; Galactic Radiation; Galactic Structure; Heao 2; Optical Emission Spectroscopy; Quasars; Seyfert Galaxies; Astrophysics full text sources ADS | data products SIMBAD (48) NED (42) Related Materials (1) Erratum: 1984ApJ...283..469F