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- Scientific rationale
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- A new era in high energy astrophysics has been recently opened with the launch of the Fermi Gamma-Ray Space Telescope and the AGILE satellite. Together with the latest generation of ground-based atmospheric imaging Cherenkov telescopes these space missions are revolutionising studies of the high energy Universe. The first year results from the Fermi Large Area Telescope have confirmed the findings of EGRET, showing that the extragalactic gamma-ray sky is dominated by active galactic nuclei (AGN). At the other extreme of the spectrum, radio and millimetre-wave astronomy and especially VLBI have long been the key tools in studying the relativistic outflows that are the likely sites of gamma-ray production in AGN.
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- The potential synergies between high-resolution radio astronomy and gamma-ray observations of AGN were discussed in a workshop at the Goddard Space Flight Center in April 2007. After more than one year of Fermi science operations, it is now a good time to review what we have learned from the first combined radio and gamma-ray studies and to discuss how these first results should shape future research programs.
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- A workshop addressing these issues will be held at the Max-Planck-Institute for Radio Astronomy in Bonn, Germany on 21.6.-23.6.2010. Different topics will be addressed, such as the relationship of the radio properties to gamma-ray brightness, localisation of the high energy emission site, testing various gamma-ray production models, constraining the basic intrinsic jet properties, understanding the duty cycle of the flares etc. In addition to invited and contributed presentations, there will be three working groups formed by the workshop participants which will focus on particular aspects of the conference and outline multi-wavelength observing programs of the future.
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- The workshop is sponsored by the RadioNet Consortium, within the FP7 program of the European Union.
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