Speaker: Dr. Emmanouil Angelakis, MPI for Radio Astronomy, Bonn

Title: "GAMMA-project: The *G*LAST *A*GN *M*ulti-frequency *M*onitoring
       *A*lliance"

Abstract:
The new gamma-ray satellite GLAST foreseen for May 2008 provides a
tremendous opportunity for  future blazar studies. In order to fully
benefit from the offered capabilities of this instrument and to
interpret  the high energy emission, a multi-frequency campaign has been
initiated. It produces comprehensive measurements prior to and after the
GLAST launch for a sample of roughly 60 blazars that appear highly
interesting. The campaign covers a unprecedented frequency range
including radio, mm, optical and infrared wavelengths bringing together
some state-of-the-art facilities. There is a tight coordination of the
observations so that simultaneity of the order of a few days is
achieved. Apart from total intensity, the study also focuses on
polarization mode. This effort will eventually allow the study of the
long-term variability and spectral shape evolution of blazars. Combined
with future GLAST gamma-ray data, the detailed study of (i) the
gamma-radio connection (e.g. variability, flares, gamma-production site
including VLBI) and (ii) the broad band emission of blazars will become
possible.