A portable S-DIMM developed for preliminary measurement of seeing for Solar Site Survey: Theory and one case study

doi:10.1016/j.newast.2024.102206

YNAO OpenIR > 选址与日冕观测组

	A portable S-DIMM developed for preliminary measurement of seeing for Solar Site Survey: Theory and one case study
	Duan, Xiao-Mei 1; Liu Y(刘煜)1,2 ; Song TF(宋腾飞)1,2 ; Zhu, Feng-Rong 1
发表期刊	NEW ASTRONOMY
	2024-07
卷号	109
DOI	10.1016/j.newast.2024.102206
产权排序	第2完成单位
收录类别	SCI
关键词	Atmospheric turbulence Daytime seeing Atmospheric coherence length Astronomical site survey
摘要	Imaging quality is highly important for astronomical observations. The imaging quality of a telescope depends not only on the capabilities of the telescope itself but also on its location. When distant stars pass the atmosphere, due to the presence of atmospheric turbulence, the imaging quality becomes degraded. The atmospheric coherence length is the most commonly used parameter to evaluate the influence of the local atmospheric turbulence on telescopes. It is used to describe the degree of atmospheric attenuation of image quality. For the preliminary estimation of atmospheric daytime seeing from a lot of candidate sites, we have developed a portable S-DIMM (PS-DIMM),which is mainly composed of a light -duty tracking mount, a 9 cm aperture lens barrel and a Canon 60D SLR camera. With the PS-DIMM the daytime seeing of a site can be well estimated by measuring the relative displacement variance of the edge positions at both ends of the Sun's diameter. The principle of PS-DIMM is introduced in this paper. The simultaneous seeing measurements by it and the traditional S-DIMM were carried out at the Fuxian Lake Solar Station, showing a very well correlated between them but with an offset of 2.6 cm. In contrast to the traditional S-DIMM, PS-DIMM offers the advantages of reduced weight and enhanced portability. The utilization of PS-DIMM has played an important role in the early stages of the site survey for the next -generation solar telescopes.
资助项目	National Natural Science Foundation of China[12373063]; National Natural Science Foundation of China[11533009]; Yunnan Fundamental Research Projects
项目资助者	National Natural Science Foundation of China[12373063, 11533009] ; Yunnan Fundamental Research Projects[U2031148] ; [202401AT070140]
语种	英语
学科领域	天文学 ; 实测天体物理学 ; 天文学其他学科
文章类型	Article
出版者	ELSEVIER
出版地	RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN	1384-1076
URL	查看原文
WOS记录号	WOS:001208896700001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	TURBULENCE
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27145
专题	选址与日冕观测组无名山观测站
作者单位	1.College of Physical Science and Technology, Southwest Jiaotong University, Chengdu, China; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming, China
推荐引用方式 GB/T 7714	Duan, Xiao-Mei,Liu Y,Song TF,et al. A portable S-DIMM developed for preliminary measurement of seeing for Solar Site Survey: Theory and one case study[J]. NEW ASTRONOMY,2024,109.
APA	Duan, Xiao-Mei,刘煜,宋腾飞,&Zhu, Feng-Rong.(2024).A portable S-DIMM developed for preliminary measurement of seeing for Solar Site Survey: Theory and one case study.NEW ASTRONOMY,109.
MLA	Duan, Xiao-Mei,et al."A portable S-DIMM developed for preliminary measurement of seeing for Solar Site Survey: Theory and one case study".NEW ASTRONOMY 109(2024).

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