Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...321..105d&link_type=abstract
Astronomy and Astrophysics, v.321, p.105-110
Astronomy and Astrophysics
Astrophysics
71
Galaxies: Active, Radio Continuum: Galaxies, Quasars: General
Scientific paper
A well defined sample of 72 Gigahertz Peaked Spectrum radio sources is compiled, having turnover frequencies in the range of 0.5-10GHz. Using this sample, the canonical GPS radio spectrum is constructed, which is found to have a constant shape, independent of AGN type, redshift or radio luminosity. A possible deficiency of low turnover frequencies at high redshift is found, which may reflect a physical mechanism where turnover frequency and radio luminosity are correlated.
Barthel Peter D.
de Vries Willem H.
O'Dea Christopher P.
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