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Date and Time of the Query: 2019-06-26 T10:05:42 PDT
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For refcode 2004MNRAS.351..676R:
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Copyright by Royal Astronomical Society. 2004MNRAS.351..676R Submillimetre photometry of typical high-redshift radio quasars Rawlings, Steve; Willott, Chris J.; Hill, Gary J.; Archibald, Elese N.; Dunlop, James S.; Hughes, David H. Abstract. We present Submillimetre Common-User Bolometer Array (SCUBA) photometry of a sample of eight high-redshift (2.5 <=z < 3.5) radio quasars from two redshift surveys: the TexOx-1000 (or TOOT) Survey and the 7C Redshift Survey (7CRS). Unlike the powerful high-redshift radio sources observed previously in the submillimetre, these radio sources are typical of those dominating the radio luminosity density of the population. We detect just two of the TOOT/7CRS targets at 850 microns, and one of these detections is probably due to synchrotron emission rather than dust. The population represented by the other six objects is detected in a statistical sense with their average 850- microns flux density implying that they are similar to low-redshift, far-infrared luminous quasars undergoing at most moderate (<~200 M_sun_yr^-1^) starbursts. By considering all the SCUBA data available for radio sources, we conclude that positive correlations between rest-frame far-infrared luminosity L_FIR_, 151-MHz luminosity L_151_ and redshift z, although likely to be present, are hard to interpret because of subtle selection and classification biases, small number statistics and uncertainties concerning synchrotron contamination and k-correction. We argue that there is not yet any compelling evidence for significant differences in the submillimetre properties of radio-loud and radio-quiet quasars at high redshift. Keywords: galaxies: active, galaxies: evolution, galaxies: formation, galaxies: jets, galaxies: luminosity function, mass function
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