The Radio Luminosity Function (RLF) of Active Galactic Nuclei (AGN) in the VLBA Calibrator Survey.

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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. In this preliminary study we use the data from VLBA Calibrator Survey, which is complete to flux density of 0.2 Jy, to recover the intrinsic luminosity function of flat spectrum AGN. Even though about 1/3 of the sources in this sample are missing redshifts, the analysis of the source counts shows that the sample is almost complete with regard to identifications down to about 0.75 Jy. At this level we observe sources an order of magnitude fainter than those in MOJAVE sample but we still find no evidence for a break in the parent (intrinsic) RLF. The results are in agreement with the RLF of the MOJAVE sample.

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