The Radio-Loud Fraction of Quasars is a Strong Function of Redshift and Optical Luminosity

Using a sample of optically selected quasars from the Sloan Digital Sky Survey, we have determined the radio-loud fraction (RLF) of quasars as a function of redshift and optical luminosity. The sample contains more than 30,000 objects and spans a redshift range of 0 < z , 5 and a luminosity range...

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Veröffentlicht in:	The Astrophysical journal 2007-02, Vol.656 (2), p.680-690
Hauptverfasser:	Jiang, Linhua, Fan, Xiaohui, Ivezić, Željko, Richards, Gordon T, Schneider, Donald P, Strauss, Michael A, Kelly, Brandon C
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology
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