Identification of new TeV gamma-ray sources in the Galactic Plane

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Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Tev1614-518, Xmm-Newton Proposal 04065501

Scientific paper

The first TeV gamma-ray survey of the inner part of our Galaxy, recently performed with HESS, yielded eight new sources, seven of which have been identified with radio, X-ray and soft gamma-ray sources. However, TeV J1614-518, a bright, hard-spectrum, extended source, has strikingly elluded identification, notably in the radio and ROSAT bands. We propose XMM-Newton observations to search for its X-ray counterpart. An identification would provide key information about the source type, the spectral high energy distribution and the source spatial structure. Otherwise, the lack of an X-ray counterpart would severely challenge lepton acceleration models and point towards hadronic acceleration or a new, dark class of cosmic ray sources.

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