Yoshiyuki Inoue, for the CTA Consortium
Following the great success of the current Imaging Atmospheric Cherenkov
Telescopes, the next generation gamma-ray telescope arrays, Cherenkov Telescope
Array (CTA), is being prepared. CTA will have an order of magnitude higher
sensitivity and wider energy range than current instruments. Large samples of
very high energy (VHE; >30 GeV) sources will be obtained with CTA. Here we
discuss potential AGN population studies for the CTA era concerning the overall
source counts and the statistics of high redshift sources. Based on our latest
blazar gamma-ray luminosity function (GLF) model, we find that CTA will detect
~50 and ~160 blazars with 1 year and 10 years of blank field sky survey,
respectively. CTA is also expected to find a blazar at z~1.4 (~20 blazars above
z=1) based on the blazar GLF. Furthermore, we also examine the detectability of
high redshift Fermi blazars. By extrapolating the Fermi blazars' spectra with a
power-law, we find that CTA has a capability to detect a Fermi blazar at
z=2.49.
View original:
http://arxiv.org/abs/1112.5813
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