Model light curves based upon parameters describing PKS 1510−089 for VHE γ rays (top row), HE γ rays (2^nd row), X-rays (3^rd row), and the optical R-band (bottom row) for purely leptonic processes (left column) and including hadronic processes (right column). Displayed models are either with (thick dashed) or without (solid) γ − γ pair production. Colors are for various opening angles as labeled. The vertical lines mark t_esc(0) (red), the crossing of the BLR edge (blue) and of the DT edge (magenta); all times in the observer’s frame. For clarity, the launch of the blob takes place at t^obs = 0.1 d.