Two sets of improved approximate expressions of the gyrosynchrotron radiation

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	Two sets of improved approximate expressions of the gyrosynchrotron radiation
	Zhou, AH; Ma, CY; Zhang, J; Wang, XD; Zhang, HQ
刊名	SOLAR PHYSICS
	1998
卷号	177 期号:1-2 页码:427-437
关键词	HARD X-RAY SOLAR-FLARES LIMB FLARE ELECTRONS FIELD
ISSN号	0038-0938
英文摘要	In this paper two sets of improved approximate expressions of emissivity eta(nu)/BN, absorptivity k(nu)B/N, effective temperature T-eff, and frequency of peak brightness nu(p) of gyrosynchrotron radiation are presented respectively for the ranges from 5 to 10 and 10 to 100 of harmonic numbers s (= nu/nu(B)). The expressions are designed for the range from 20 degrees to 80 degrees of viewing angle theta, and the range 2 to 7 of electron energy spectral index delta. They are expressed by a power-law function in which the indexes are fitted by polynomial expressions of delta. Their statistical errors are, respectively, 24% and 32% for eta(nu)/BN and k(nu)B/N for 5 less than or equal to nu/nu(B) less than or equal to 10, 22% and 28% for 10 less than or equal to nu/nu(B) less than or equal to 100. Their accuracies are much better than those of linear fitting of the power-law index.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	HARD X-RAY ; SOLAR-FLARES ; LIMB FLARE ; ELECTRONS ; FIELD
收录类别	SCI
语种	英语
WOS记录号	WOS:000072818400037
公开日期	2013-02-05
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8351]
专题	紫金山天文台_太阳活动的多波段观测研究团组
作者单位	Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Zhou, AH,Ma, CY,Zhang, J,et al. Two sets of improved approximate expressions of the gyrosynchrotron radiation[J]. SOLAR PHYSICS,1998,177(1-2):427-437.
APA	Zhou, AH,Ma, CY,Zhang, J,Wang, XD,&Zhang, HQ.(1998).Two sets of improved approximate expressions of the gyrosynchrotron radiation.SOLAR PHYSICS,177(1-2),427-437.
MLA	Zhou, AH,et al."Two sets of improved approximate expressions of the gyrosynchrotron radiation".SOLAR PHYSICS 177.1-2(1998):427-437.