Search for X-ray counterparts of Galactic TeV sources discovered by H.E.S.S.

During a scan of the Galactic plane performed in 2004, H.E.S.S. (the currentlymost sensitive TeV telescope) has discovered a new class of so far unidentifiedTeV gammaray sources. We propose to use XMM to perform followup observationson several of these sources, for which exhaustive searches in existing broadbanddata have revealed no obvious counterparts. The large sensitivity of XMM and itsenergy range up to 15 keV is required to identify the Xray counterparts of theTeV sources despite the obscuration by gas in the Galactic plane, and will allowus to obtain morphological and spectral information which will help to identifythe physical nature of this new class of high energy gammaray sources. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]