Orateur
Summary
Blazars are thought to emit highly-collimated outflows, so-called jets.
By their close alignment to our line of sight, relativistic beaming
effects enable us to observe these jets over the whole electromagnetic
spectrum up to TeV energies, making them ideal laboratories for studying
jet physics. In the last years multiwavelength observations of blazars
provided us with detailed data sets which helped to characterize the two
main components of the non-relativistic emission, peaking in the optical
to X-ray and GeV/TeV energy region, respectively. In leptonic
acceleration models, they are explained by synchrotron radiation of
electrons and Inverse-Compton emission from the same electron population
and thus, correlations of both emission regimes are expected. In the
presentation, recent oservational results on the presence and absence of
such correlations in blazars are reviewed, and constraints on emission
models by quantitative correlation analyses are discussed.
