Stochastic acceleration in the western hot spot of Pictor A
文献类型：期刊论文
| 作者 | Fan ZH(范忠辉); Wang JM(王建民) ; Fan, ZH; Liu, SM; Wang, JM; Fryer, CL; Li, H
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2008 |
| 卷号 | 673期号:2页码:L139-L142 |
| 关键词 | acceleration of particles galaxies : individual (Pictor A) galaxies : jets radiation mechanisms : nonthermal |
| 通讯作者 | [Fan, Zhong-Hui ; Wang, Jian-Min] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Liu, Siming ; Fryer, Christopher L. ; Li, Hui] Los Alamos Natl Lab, Los Alamos, NM 87545 USA ; [Fryer, Christopher L.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA |
| 英文摘要 | Chandra's high-resolution observations of radio galaxies require a revisit of the relevant electron acceleration processes. Although the diffusive shock particle acceleration model may explain spectra of spatially unresolved sources, it encounters difficulties in explaining the structure and spectral properties of recently discovered Chandra X-ray features in several low-power radio sources. We argue that these observations strongly suggest stochastic electron acceleration by magnetized turbulence, and show that the simplest stochastic particle acceleration model with energy-independent acceleration and escape timescales can overcome most of these difficulties. We use the bright core of the western hot spot of Pictor A as an example to demonstrate the model characteristics, which may be tested with high-energy observations. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000255233000009 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240248]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Fan ZH,Wang JM,Fan, ZH,et al. Stochastic acceleration in the western hot spot of Pictor A[J]. ASTROPHYSICAL JOURNAL LETTERS,2008,673(2):L139-L142. |
| APA | 范忠辉.,王建民.,Fan, ZH.,Liu, SM.,Wang, JM.,...&Li, H.(2008).Stochastic acceleration in the western hot spot of Pictor A.ASTROPHYSICAL JOURNAL LETTERS,673(2),L139-L142. |
| MLA | 范忠辉,et al."Stochastic acceleration in the western hot spot of Pictor A".ASTROPHYSICAL JOURNAL LETTERS 673.2(2008):L139-L142. |
入库方式： OAI收割
来源：高能物理研究所
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