| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Research Abstract |
Cosmic-rays affect the evolution of galaxies and clusters of galaxies. I studied the acceleration and diffusion of cosmic-rays in galaxies and clusters as well as their influence on the surrounding environment in a unified framework. The main results of this study are given as follows. (1) In galaxies, most cosmic-rays are accelerated at supernova remnants. During their diffusion into interstellar space, they excite plasma waves, which interact cosmic-rays and delay their diffusion. (2) In clusters, cosmic-rays are accelerated at the central AGNs. They propagate in intracluster gas along with plasma waves and widely heat the gas.
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