Image Details
Caption: Figure 18.
Distribution of the beaming factor δ3−α as a function of Γβ. θv = 14° and α = −0.5 are adopted. The cross-hatched gray area highlights the Doppler boosting with beaming factors of ∼1–100 at 10−2 ≲ Γβ ≲ 3, corresponding to the observations at z/rg ∼ 103–104 in Figure 16. Note that a peak of the curve is located at Γβ with ﹩\beta =\cos {\theta }_{{\rm{v}}}﹩.
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