Gamma-ray properties of supernova remnants transporting into molecular clouds: the cases of IC 443 and W44
文献类型：期刊论文
| 作者 | Fang, Jun1,2; Yu, Huan1; Zhu, Bo-Tao1; Zhang, Li1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2013-10 |
| 卷号 | 435期号:1页码:570-574 |
| 关键词 | ISM: individual objects: IC 443 ISM: individual objects: W44 ISM: supernova remnants |
| ISSN号 | 0035-8711 |
| 通讯作者 | Fang, J (reprint author), Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China. |
| 英文摘要 | Motivated by the recent report of the detailed spectra of IC 443 and W44 based on four years of observations with the Fermi Large Area Telescope, gamma-rays produced via proton-proton interaction in the two supernova remnants (SNRs) have been investigated in the diffusive shock acceleration scenario. In the model, a part of the SNR shell transporting into ambient dense molecular clouds (MCs), and a shock with a relatively low Alfven Mach number can be produced. Relativistic protons are accelerated in the shock via the diffusive acceleration process; moreover, a break in the particle distribution is induced since the damping of Alfven waves when the shock transporting into partly ionized plasma. A spectrum of the accelerated protons in the shock can be obtained in the test-particle case, taking into account the effect of the ambient partly ionized plasma on the acceleration process. Furthermore, hadronic gamma-rays with a peak around several GeVs are reproduced as the protons inelastically colliding with the ambient matter of the crushed gas. The observed gamma-ray spectral distributions of the SNR IC 443 and W44 can be successfully reproduced using the static model in the test-particle scenario. It can be concluded that the observed gamma-rays can be explained in the diffusive shock case as the shock waves transporting into the dense MCs for the two remnants. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIFFUSIVE SHOCK ACCELERATION ; EMISSION ; IC-443 ; TELESCOPE ; PARTICLES ; PROTONS ; WAVES ; DENSE ; GAS ; W28 |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/435/1/570 |
| 语种 | 英语 |
| WOS记录号 | WOS:000325804300039 |
| 公开日期 | 2016-06-01 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9424]  |
| 专题 | 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Department of Physics, Yunnan University, Kunming 650091, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Fang, Jun,Yu, Huan,Zhu, Bo-Tao,et al. Gamma-ray properties of supernova remnants transporting into molecular clouds: the cases of IC 443 and W44[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,435(1):570-574. |
| APA | Fang, Jun,Yu, Huan,Zhu, Bo-Tao,&Zhang, Li.(2013).Gamma-ray properties of supernova remnants transporting into molecular clouds: the cases of IC 443 and W44.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,435(1),570-574. |
| MLA | Fang, Jun,et al."Gamma-ray properties of supernova remnants transporting into molecular clouds: the cases of IC 443 and W44".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 435.1(2013):570-574. |
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来源：云南天文台
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