Optically thick gyrosynchrotron emission from anisotropic electron distributions
文献类型：期刊论文
| 作者 | Fleishman, GD; Melnikov, VF |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2003-02-20 |
| 卷号 | 584期号:2页码:1071-1083 |
| 关键词 | acceleration of particles Sun : flares Sun : particle emission Sun : radio radiation |
| 英文摘要 | We present a numerical study of optically thick gyrosynchrotron emission produced by fast electrons with anisotropic pitch-angle distributions. The anisotropy is found to affect substantially both radiation spectra and polarization. The harmonic nature of gyrosynchrotron emission becomes more pronounced for the anisotropic case. The effect is entirely provided by a reduction of the self-absorption coefficient due to pitch-angle anisotropy; thus, it is essentially different from electron cyclotron maser emission, which is due to wave amplification under negative absorption. The paper studies the dependences of the emission on the involved parameters and discusses possible applications of the results to observations of microwave solar radio bursts. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | TERRESTRIAL KILOMETRIC RADIATION ; CYCLOTRON MASER INSTABILITY ; SOLAR MICROWAVE-BURSTS ; HARD X-RAY ; LOSS-CONE ; ENERGETIC ELECTRONS ; NONLINEAR TREATMENT ; RADIO-BURSTS ; GAMMA-RAY ; FLARE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000180884100051 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/15836]  |
| 专题 | 紫金山天文台_空间目标与碎片观测研究基地 |
| 作者单位 | 1.Natl Astron Observ, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Ioffe Inst Phys & Technol, St Petersburg 194021, Russia 3.New Jersey Inst Technol, Newark, NJ 07102 USA 4.Radiophys Res Inst NIRFI, Nizhnii Novgorod 603950, Russia |
| 推荐引用方式 GB/T 7714 | Fleishman, GD,Melnikov, VF. Optically thick gyrosynchrotron emission from anisotropic electron distributions[J]. ASTROPHYSICAL JOURNAL,2003,584(2):1071-1083. |
| APA | Fleishman, GD,&Melnikov, VF.(2003).Optically thick gyrosynchrotron emission from anisotropic electron distributions.ASTROPHYSICAL JOURNAL,584(2),1071-1083. |
| MLA | Fleishman, GD,et al."Optically thick gyrosynchrotron emission from anisotropic electron distributions".ASTROPHYSICAL JOURNAL 584.2(2003):1071-1083. |
入库方式： OAI收割
来源：紫金山天文台
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