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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2003-04-20
卷号587期号:2页码:823-835
关键词acceleration of particles radiation mechanisms : nonthermal Sun : flares
英文摘要We present numerical calculations of the intensity, degree of polarization, and spectral index of gyrosynchrotron emission produced by fast electrons with anisotropic pitch-angle distributions. The anisotropy is found to affect the emission substantially. The emission intensity can change up to a few orders of magnitude at the optically thin region compared with the isotropic case. The local value of spectral index changes considerably with the anisotropy. X-mode polarization increases for loss cone distributions and decreases for beamlike distributions. Moreover, the sense of polarization can correspond to the ordinary wave mode at the optically thin region for a certain range of view angles for beamlike distributions. We discuss possible applications and observability of the effects obtained.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]SOLAR MICROWAVE-BURSTS ; HARD X-RAY ; APPROXIMATE EXPRESSIONS ; PARTICLE-ACCELERATION ; FLARE ; RADIATION ; PROPAGATION ; EVOLUTION ; INJECTION ; DYNAMICS
收录类别SCI
语种英语
WOS记录号WOS:000182159400034
源URL[http://libir.pmo.ac.cn/handle/332002/15822]  
专题紫金山天文台_暗物质和空间天文实验室
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. Gyrosynchrotron emission from anisotropic electron distributions[J]. ASTROPHYSICAL JOURNAL,2003,587(2):823-835.
APA Fleishman, GD,&Melnikov, VF.(2003).Gyrosynchrotron emission from anisotropic electron distributions.ASTROPHYSICAL JOURNAL,587(2),823-835.
MLA Fleishman, GD,et al."Gyrosynchrotron emission from anisotropic electron distributions".ASTROPHYSICAL JOURNAL 587.2(2003):823-835.

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