GeV analysis of mixed morphology supernova remnants interacting with molecular clouds

The first remnants detected by the Fermi Gamma-ray Space Telescope were of the type of mixed-morphology supernova remnants interacting with molecular clouds. In this paper we are presenting preliminary results of the gamma-ray analysis of 4 selected mixed morphology remnants, G359.1−0.5, G337.8−0.1, G001.0−0.1, and G346.6−0.2, as well as G349.7+0.2, in the 0.2 - 300 GeV energy range from the data collected by Fermi Gamma-ray Space Telescope for 3 years. G359.1−0.5, G337.8−0.1, and G349.7+0.2 were all detected with significances above 5 σ. The excess distribution of G359.1−0.5 shows extended gamma-ray emission, which coincides with the TeV gamma-ray source HESS J1745−303. G337.8−0.1 also shows an extended nature.