arXiv 0910.06432009-10-04astro-ph.GAastro-ph.CO

AGN astrophysics via multi-frequency monitoring of gamma-ray blazars in the Fermi-GST era

E. Angelakis, L. Fuhrmann, J. A. Zensus, I. Nestoras, N. Marchili, T. P. Krichbaum, H. Ungerechts, W. Max-Moerbeck, V. Pavlidou, T. J. Pearson, A. C. S. Readhea… 展开作者

E. Angelakis, L. Fuhrmann, J. A. Zensus, I. Nestoras, N. Marchili, T. P. Krichbaum, H. Ungerechts, W. Max-Moerbeck, V. Pavlidou, T. J. Pearson, A. C. S. Readhead, J. L. Richards, M. A. Stevenson

备注：: To appear in the proceedings of the conference: "Accretion and Ejection in AGN: A Global View ", June 22-26, 2009, Como, Italy

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The F-GAMMA-project is the coordinated effort of several observatories to understand the AGN phenomenon and specifically blazars via multi-frequency monitoring in collaboration with the {\sl Fermi}-GST satellite since January 2007. The core observatories are: the Effelsberg 100-m, the IRAM 30-m and the OVRO 40-m telescope covering the range between 2.6 and 270 GHz. Effelsberg and IRAM stations do a monthly monitoring of the cm to sub-mm radio spectra of 60 selected blazars whereas the OVRO telescope is observing roughly 1200 objects at 15 GHz with a dense sampling of 2 points per week. The calibration uncertainty even at high frequencies, is of a few percent. 47% of the Effelsberg/Pico Veleta sample is included in the LBAS list. An update of the monitored sample is currently underway.

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