|The Australia Telescope National Facility Colloquium|
|15:00-16:00 Wed 01 Aug 2012|
Marsfield Lecture Theatre
(Nagoya University Southern Observatories)
HI gas as a key to test hadronic gamma-rays in young SNRs -- Yasuo Fukui Colloquium
The origin of the cosmic rays is a longstanding question since the discovery of the cosmic rays by V. Hess in 1912. The most likely acceleration site of the cosmic rays is supernova remnants in the Galaxy, while the site still remains to be established observationally. Recent progress in the gamma-ray observations has opened a unique possibility to explore the cosmic-ray origin because the gamma-rays are produced via interaction of cosmic rays with the ambient interstellar medium and/or low-energy photons. In such efforts, radio studies of the interstellar medium are crucial in quantitative determination of the interaction of the cosmic rays.
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