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A Clash of Clusters Provides New Clue to Dark Matter
GLAST Lunch - Luigi Costamante
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GLAST Lunch - Lukasz Stawarz
| What | GLAST lunch |
|---|---|
| When |
14 June 07 from 12:15 pm to 01:00 pm |
| Where | 3rd Floor KAVLI Conf Room |
| Contact Name | Stefan Funk` |
| Contact Email | funk@slac.stanford.edu |
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Gamma-ray Emission of Young Radio Galaxies
Published paper can be found at:
http://xxx.lanl.gov/abs/0712.1220
Here we present a simple model for evolution of young radio galaxies. These objects are known to form a numerous class of extragalactic radio sources characterized by the synchrotron spectrum peaking around GHz frequencies (`GPS sources'). Basing on the proposed model we argue that inverse-Compton emission of ultrarelatvistic electrons in sub-kpc-scale lobes of such objects should extend up to GeV photon energies, and that it should be strong enough to be detectable by GLAST. Thus, GPS sources are expected to constitute a relative numerous class of extragalactic gamma-ray sources (in addition to but different than the well-known class of blazars). We emphasize that the detection of the expected gamma-ray emission from GPS radio galaxies would enable to constrain several crucial parameters of extragalactic jets in general.
Stanford High Performance Computing Conference IV