On the origin of nonthermal X-rays and high energy gamma-rays from RX J1713.7-3946

The morphological and spectral features of nonthermal X-rays and high energy gamma-rays observed from the supernova remnant RX J1713.7-3946 challenge the predictions of the standard diffusive shock acceleration model concerning the synchrotron and inverse Compton components of radiation by directly accelerated multi-TeV electrons. I will discuss perceptions of an alternative scenario in which the interaction of the bright western part of the supernova shell with the recently discovered dense molecular cloud plays important role in the formation of broad-band spectral energy distribution of the source extending from radio to very high energy gamma-rays.