Hadronic Scenarios for Gamma-Ray Emission from Three Supernova Remnants Interacting with Molecular Clouds
Yu Huan1; Fang Jun1,2; Zhang Li1; Zhang, L (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China.
发表期刊CHINESE PHYSICS LETTERS
2014-04
卷号31期号:4
DOI10.1088/0256-307X/31/4/049801
收录类别SCI
摘要GeV gamma-rays detected with the large area telescope on board the Fermi Gamma-ray space telescope in the direction of IIB21, MSII 17-39 and G337.0-0.1 have been recently reported. The three supernova remnants (SNRs) show interactions with molecular clouds, and they are effective gamma-ray emitters as the relativistic protons accelerated by the SNR shocks inelastically colliding with the dense gas in the clouds. The origin of the observed gamma-rays for the three remnants is investigated in the scenario of the diffusive shock acceleration. In the model, a part of the SNR shock transmits into the nearby molecular clouds, and the shock velocity is greatly reduced. As a result, a shock with a relatively low Alfven Mach number is generated, and the spectra of the accelerated protons and the gamma-ray photons produced via proton-proton interaction can be obtained. The results show that the observed gamma-ray spectra for the three SNRs interacting with the molecular clouds can be reproduced. It can be concluded that the hadronic origin of the gamma-rays for the three SNRs is approved, and the ability of SNR shocks to accelerate protons is also supported.
项目资助者National Natural Science Foundation of China(11103016,11173020) ; Key Project of the Ministry of Education of China(212160) ; Applied Basic Research Project of Yunnan Province(2011FB012) ; Light of the Western Talent Training Project(W8090303) ; Key Laboratory for the Structure and Evolution of Celestial Objects of Chinese Academy of Sciences(OP201101)
语种英语
学科领域Physics
文章类型Article
ISSN0256-307X
URL查看原文
WOS记录号WOS:000334400400052
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
关键词[WOS]DIFFUSIVE SHOCK ACCELERATION ; COSMIC-RAYS ; COINCIDENT ; PARTICLES ; OVERTAKEN ; TORNADO ; NEBULA ; WAVES ; EYE ; W44
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9450
专题中国科学院天体结构与演化重点实验室
通讯作者Zhang, L (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China.
作者单位1.Department of Physics, Yunnan University, Kunming 650091
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011
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Yu Huan,Fang Jun,Zhang Li,et al. Hadronic Scenarios for Gamma-Ray Emission from Three Supernova Remnants Interacting with Molecular Clouds[J]. CHINESE PHYSICS LETTERS,2014,31(4).
APA Yu Huan,Fang Jun,Zhang Li,&Zhang, L .(2014).Hadronic Scenarios for Gamma-Ray Emission from Three Supernova Remnants Interacting with Molecular Clouds.CHINESE PHYSICS LETTERS,31(4).
MLA Yu Huan,et al."Hadronic Scenarios for Gamma-Ray Emission from Three Supernova Remnants Interacting with Molecular Clouds".CHINESE PHYSICS LETTERS 31.4(2014).
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