2012 Fiscal Year Final Research Report
Systematic study of cosmic-ray acceleration in supernova remnants using the all-sky survey data in GeV gamma rays
| Project/Area Number |
22740167
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Research Collaborator |
MIZUNO Tsunefumi 広島大学, 宇宙科学センター, 准教授 (20403579)
FUKUI Yasuo 名古屋大学, 大学院理学研究科, 教授 (30135298)
YAMAZAKI Ryo 青山学院大学, 理工学部, 准教授 (40420509)
HANABATA Yoshitaka 東京大学, 宇宙線研究所, 研究員 (30711923)
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| Project Period (FY) |
2010 – 2012
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| Keywords | ガンマ線 / 超新星残骸 / フェルミ衛星 / 宇宙線 / 粒子加速 / 拡散 / 分子雲 |
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| Research Abstract |
We observed the supernova remnant Cygnus Loop, G8.7-0.1, and W44 with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope and found GeV gamma-ray emission from the surrounding material around them. The gamma-ray data are well modeled with emission due to interactions between cosmic rays accelerated in the SNRs and gas, which provides new systematic constraints on understanding particle acceleration and release in the medium.
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