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Molecular Clouds as Cosmic Ray Laboratories

S Casanova,F Aharonian,Yasuo Fukui,S Gabici,D I Jones,Akiko Kawamura,Toshikazu Onishi,G Rowell,Hidetoshi Sano,Kazufumi Torii,F Volpe,Hiroaki Yamamoto

Proceedings of 25th Texas Symposium on Relativistic Astrophysics — PoS(Texas 2010)（2011）

Cited 23|Views15
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Abstract
We will here discuss how the gamma-ray emission from molecular clouds can be used to probe the cosmic ray flux in distant regions of the Galaxy and to constrain the highly unknown cosmic ray diffusion coefficient. In particular we will discuss the GeV to TeV emission from runaway cosmic rays penetrating molecular clouds close to young and old supernova remnants and in molecular clouds illuminated by the background cosmic ray flux.
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Key words
molecular clouds,cosmic ray,gamma ray,high energy astrophysics,diffusion coefficient
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