Probabilities of perception and population index in visual observations of meteor showers

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	Probabilities of perception and population index in visual observations of meteor showers
	Wu GJ(吴光节)1 ; Li, GY 2,3
刊名	EARTH MOON AND PLANETS
	2003-09
卷号	93 期号:1 页码:1-18
关键词	meteor shower population index probabilities of perception
ISSN号	0167-9295
通讯作者	Wu, GJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	An analytic function of the probabilities of perception is given first time in this paper. Based on this function it is more convenient for calculation and analysis than using listed data. It is easy to see that in any case in the distribution of visual observed number of meteors, the integrate number in subsection of Deltam greater than or equal to Deltam(peak) is much more great than that in subsection of Deltam < &UDelta;m(peak). In virtue of the advantage of this function, several methods of estimating and calculating the popular index r have been put forward. The methods of peak-magnitude-difference and Full Width at Half Maximum are easy and convenient to use, could quickly estimate a rather good value of r. For observations with enough meteors and enough magnitude subsections, the Least Square Fitting is often used to give a good result of r. The iterative method, which is suggested first time in this paper, can also give a similar precision of r. In addition, it can be used in only two magnitude subsections. Therefore, it may be suitable for analyzing variation of r along magnitude classes. However, the best method might be the mean-magnitude-difference. Of cause, crossing use of several methods may eliminate the effect of the random error in observations largely.
学科主题	Astronomy & Astrophysics ; Geology
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics ; Geosciences, Multidisciplinary
研究领域[WOS]	Astronomy & Astrophysics ; Geology
收录类别	SCI ; EI
原文出处	http://link.springer.com/article/10.1023%2FB%3AMOON.0000034494.59342.f4
语种	英语
WOS记录号	WOS:000222604100001
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4155]
专题	云南天文台_其他
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China 2.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210008, P. R. China 3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, P. R. China
推荐引用方式 GB/T 7714	Wu GJ,Li, GY. Probabilities of perception and population index in visual observations of meteor showers[J]. EARTH MOON AND PLANETS,2003,93(1):1-18.
APA	Wu GJ,&Li, GY.(2003).Probabilities of perception and population index in visual observations of meteor showers.EARTH MOON AND PLANETS,93(1),1-18.
MLA	Wu GJ,et al."Probabilities of perception and population index in visual observations of meteor showers".EARTH MOON AND PLANETS 93.1(2003):1-18.