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Supernova remnants Interacting with molecular clouds: a new way to reveal cosmic rays

Abstract : Molecular clouds interact with the ambient cosmic rays. The decay of secondary particles may give rise to a detectable flux of very high-energy photons. Recently the H.E.S.S., MAGIC and VERITAS telescopes have observed such sources associated with large molecular clouds and shell-type supernova remnants. Emission lines of OH masers are also observed in coincidence. This ensures that the expanding wave front of the supernova interacts effectively with the cloud. Such natural configurations bring new material to confront with the hypothesis that supernova remnants are the Galactic cosmic-ray accelerators. We describe the approach towards a systematic observation of such associations, present the current data and review the prospects of these studies for answering the question of the origin of the Galactic cosmic rays.
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http://hal.in2p3.fr/in2p3-00910888
Contributor : Claudine Bombar <>
Submitted on : Thursday, November 28, 2013 - 2:00:23 PM
Last modification on : Wednesday, July 22, 2020 - 9:54:08 AM

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F. Feinstein, A. Fiasson. Supernova remnants Interacting with molecular clouds: a new way to reveal cosmic rays. 5th International Conference on Beyond the Standard Models of Particle Physics, Cosmology and Astrophysics (BEYOND 2010), Feb 2010, Cape Town, South Africa. pp.579-587, ⟨10.1142/9789814340861_0054⟩. ⟨in2p3-00910888⟩

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