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Figure 1: Observed TeV slope vs. redshift for known TeV blazars. Bars denote statistical uncertainties as quoted in the original papers. |
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Figure 2:
Parameter trends for the TeV blazars in Table 1.
(i) IBL-corrected VHE slope vs. redshift. The spectral slopes have been corrected for IBL absorption according to the ``fast evolution'' a) and ``baseline'' b) IBL models of
Stecker et al. (2006) as parameterized by Stecker & Scully (2006).
(ii) VHE to 2-10 keV luminosity ratio versus redshift c), and 2-10 keV luminosity
versus redshift d). Given the modest redshifts encompassed by the current sample of TeV blazars, distances have been computed according to D(z) = cz/H0 (with H0 = 72 km s-1 Mpc-1), and luminosities have not been k-corrected. The VHE luminosities are
IBL-corrected using the baseline model of Stecker & Scully (2006). In panel d), the filled dots represent X-ray data taken simultaneously with the TeV measurements, whereas the empty squares represent historical low flux states; the thin dotted curve represents the ``visibility function'' for a 2-10 keV instrumental sensitivity of 7 ![]() ![]() |
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