Abstract
view Abstract Citations (33) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Clustering of quasars. Setti, G. ; Woltjer, L. Abstract No evidence is found for significant pairing of quasars in a sample of 175 UV-excess objects of which perhaps about 80% are quasars. The space densities of quasars and giant elliptical galaxies brighter than an absolute visual magnitude of -23 are compared, and it is predicted that clustering of quasars should become important somewhere between V magnitudes of 20 and 23. The possible association of steep-spectrum, flat-spectrum, and radio-quiet quasars with giant elliptical galaxies is considered on the basis of observational data. It is concluded that the subset of steep-spectrum quasars is related to giant ellipticals. Publication: The Astrophysical Journal Pub Date: December 1977 DOI: 10.1086/182570 Bibcode: 1977ApJ...218L..33S Keywords: Galactic Clusters; Luminous Intensity; Quasars; Spatial Distribution; Elliptical Galaxies; Galaxies; Radio Spectra; Red Shift; Seyfert Galaxies; Space Density; Spectroscopic Analysis; Astrophysics full text sources ADS | data products NED (3)
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