Mathematics – Logic
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.3202c&link_type=abstract
American Astronomical Society, AAS Meeting #211, #32.02; Bulletin of the American Astronomical Society, Vol. 39, p.784
Mathematics
Logic
Scientific paper
The radio luminosity function (RLF) of active galactic nuclei (AGN) and its redshift dependence are important quantities in understanding the physics of AGN and their cosmological evolution and it can also provide information about the parent population from which an observed sample is drawn. We used the maximum likelihood method to fit a beamed RLF to the observed data, from which we recovered the RLF parameters of the parent population of the blazars in the MOJAVE sample. This approach is fundamentally different from previous studies because it does not make any assumptions about parent population of the blazars in the MOJAVE sample. Our results suggest that BL Lacs in the MOJAVE sample may have the same parents as the FR II quasars in agreement with the dual-population unification scheme of Jackson & Wall in which the high-power FR II radio galaxies are the parents of all radio quasars and some BL Lac-type objects. Contrary to previous studies, we do not find that the apparent break in the observed RLF requires a break in the parent (intrinsic) RLF at luminosities L>1025 W - Hz-1 as we were able to obtain a good fit to the data with a single power-law parent RLF.
Cara Mihai
Lister Matthew L.
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