Kaufmann, Sarah

Broadband variability of TeV BL Lac objects.

Author list: Sarah Kaufmann, Steffan Wagner

BL Lac objects provide a direct view on the high energetic jet and offer the possibility to study the emission processes and the particle acceleration in the jet because of their broad emission range over the whole electromagnetic spectrum up to TeV energies. The variability information gives a direct estimation of the maximum size of the emission region and is hence important for modeling. Under the assumption of the synchrotron Self-Compton model, which is a good description of the spectral energy distribution of BL Lac objects, correlated variability is expected in the different wavebands. We will present the broadband variability of several TeV BL Lac objects and discuss the correlation of the variation in different wavebands (e.g the expected correlation of synchrotron and inverse Compton emission).