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Hadronic Scenarios for Gamma-Ray Emission from Three Supernova Remnants Interacting with Molecular Clouds
Yu Huan1; Fang Jun1,2; Zhang Li1
Source PublicationCHINESE PHYSICS LETTERS
2014-04
Volume31Issue:4
DOI10.1088/0256-307X/31/4/049801
Indexed BySCI
Abstract

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.

Funding ProjectNational Natural Science Foundation of China[11103016] ; National Natural Science Foundation of China[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]
Funding OrganizationNational 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]
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0256-307X
URL查看原文
WOS IDWOS:000334400400052
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS KeywordDIFFUSIVE SHOCK ACCELERATION ; COSMIC-RAYS ; COINCIDENT ; PARTICLES ; OVERTAKEN ; TORNADO ; NEBULA ; WAVES ; EYE ; W44
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9450
Collection中国科学院天体结构与演化重点实验室
Corresponding AuthorZhang Li
Affiliation1.Department of Physics, Yunnan University, Kunming 650091
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011
Recommended Citation
GB/T 7714
Yu Huan,Fang Jun,Zhang Li. 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.(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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