What do supernova remnants interacting with molecular clouds reveal?

F. Feinstein (1) , A. Fiasson (1, 2) , Y. Gallant (1) , R. C. G. Chaves , V. Marandon (3) , M. de Naurois (4) , K. Kosack , G. Rowell

1 LPTA - Laboratoire de Physique Théorique et Astroparticules
2 LAPP - Laboratoire d'Annecy de Physique des Particules
3 APC - AHE - APC - Astrophysique des Hautes Energies
4 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

Very high energy gamma-ray emission has been recently detected by H.E.S.S. from the direction of associations between supernova remnants and molecular clouds. In such associations dense molecular clouds may reveal accelerated cosmic rays in the vicinity of supernova remnant forward shocks. Hadronic interactions could explain part or all of the observed gamma-ray fluxes. The discovery of a new VHE gamma-ray source, HESS J1923+141, coincident with the supernova remnant W51C, is reported. Amongst possible associations for this source is a shocked molecular cloud.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Cosmologie et astrophysique extra-galactique [astro-ph.CO]

F. Feinstein, A. Fiasson, Y. Gallant, R. C. G. Chaves, V. Marandon, et al.. What do supernova remnants interacting with molecular clouds reveal?. 6th Workshop on Science with the New Generation of High Energy Gamma-Ray Experiments (SciNeGHE '08), 2008, Padova, Italy. pp.54-62, ⟨10.1063/1.3125791⟩. ⟨in2p3-00379058⟩