Name of the Speaker(s):Alan P. Marscher
Institution:>Dept. of Astronomy Boston University
Title of the communication: Models for Blazars (Key Note talk)
Preliminary abstract (12 lines max.): I will review current models for blazars, concentrating on the sub-parsec scale region of the jet. Multiwavelength monitoring observations show that the emission site is stratified according to waveband. I will show how the observations constrain the geometry of this stratification. I will also discuss models for explaining the observed light curves of blazars and try to draw an overall picture of a blazar that is consistent with the observations.We present new simulations of relativistic extragalactic jets, in particular exploring the pattern of shocks within diverging flows using extremely long grids to accommodate the very large wavelength of such structures. We also present radiation transfer calculations incorporating time delay effects.