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Alternative TitleProgress in the Measurement and Study of the Solar Radius
屈智宁1,2; 李可军1
Source Publication天文学进展(Progress In Astronomy)
Contribution Rank第1完成单位
Indexed ByCSCD ; 核心
Keyword太阳物理 太阳半径 半径测量 半径变化


Other Abstract

Solar radius is the distance from the center of the Sun to the outer boundary of the photo-sphere. The solar radius has been measured systematically since 19th century. The adopted standard value of the solar radius is 959.6300published by Auwers in 1891. From ancient to now, a variety of instruments and different methods have been used to measure the solar radius: (1) Meridian circle measurements(Greenwich Royal Observatory);(2) Solar eclipse and Mercury transit;(3) Drift-scan technology;(4) Danjon solar style astrolabes(the Calern Observatory and the Tubitak National Ob-servatory);(5) Satellite direct angular measurement(SOHO/MDI, Picard). Some researchers have reported that the solar radius shows a secular decrease. However, other researchers have reported that the solar radius is stationary. Some researchers have studied the variation of the solar radius with solar activity, the results show that the variations of the solar radius occur over periods of some days to several tens of years. Has the solar radius changed or not? If it changes, how it changes? Accompanied with data from ancient to now, lots of work has been done. It is believed that the variability of the solar radius is a critical probe for our understanding of solar interior stratification, radiation mechanisms, space weather and Earth’s climate. In this paper, we present the history measurement and progress study of the solar radius. In Sect. 2, an overview about different solar radius methods is presented. Sect. 3 describes the different study results. Finally, Sect. 4, a proposal for future study is made.

Funding Project国家自然科学基金[11273057] ; 国家自然科学基金[11221063] ; 973项目[2012CB957801] ; 973项目[2011CB811406]
Funding Organization国家自然科学基金[11273057, 11221063] ; 973项目[2012CB957801, 2011CB811406]
Subject Area天文学 ; 天体测量学 ; 太阳与太阳系 ; 太阳与太阳系其他学科
MOST Discipline Catalogue理学 ; 理学::天文学
Archive Date2013-08-29
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Affiliation1.中国科学院云南天文台, 昆明, 650011
2.中国科学院大学, 北京, 100049
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
屈智宁,李可军. 太阳半径测量与研究进展[J]. 天文学进展(Progress In Astronomy),2013,31(3):253-266.
APA 屈智宁,&李可军.(2013).太阳半径测量与研究进展.天文学进展(Progress In Astronomy),31(3),253-266.
MLA 屈智宁,et al."太阳半径测量与研究进展".天文学进展(Progress In Astronomy) 31.3(2013):253-266.
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