YNAO OpenIR  > 选址与日冕观测组
Conditions for Coronal Observations at the Lijiang Observatory in 2011
Zhao MY(赵明宇)1,2; Liu Y(刘煜)1,2,3; Elmhamdi, A.3; Kordi, A. S.3; Zhang XF(张雪飞)1,2; Song TF(宋腾飞)1,2,4; Tian ZJ(田占军)1
Source PublicationSOLAR PHYSICS
2018
Volume293Issue:1
DOI10.1007/s11207-017-1223-z
Contribution Rank第1完成单位
Indexed BySCI
KeywordAtmospheric Effects Methods: Data Analysis Site Testing Telescope Surveys Sun: General
Abstract

The sky brightness is a critical parameter for estimating the coronal observation conditions for a solar observatory. As part of a site-survey project in Western China, we measured the sky brightness continuously at the Lijiang Observatory in Yunnan province in 2011. A sky brightness monitor (SBM) was adopted to measure the sky brightness in a region extending from 4.5 to 7.0 apparent solar radii based on the experience of the Daniel K. Inouye Solar Telescope (DKIST) site survey. Every month, the data were collected manually for at least one week. We collected statistics of the sky brightness at four bandpasses located at 450, 530, 890, and 940 nm. The results indicate that aerosol scattering is of great importance for the diurnal variation of the sky brightness. For most of the year, the sky brightness remains under 20 millionths per airmass before local Noon. On average, the sky brightness is less than 20 millionths, which accounts for 40.41% of the total observing time on a clear day. The best observation time is from 9: 00 to 13: 00 (Beijing time). The Lijiang Observatory is therefore suitable for coronagraphs investigating the structures and dynamics of the corona.

Funding ProjectNSFC[11078004] ; NSFC[11533009] ; NSFC[11503084] ; NSFC[11603074] ; Key Laboratory of Geospace Environment, CAS, University of Science & Technology of China ; Huairou Solar Observing Station, National Astronomical Observatories Chinese Academy of Sciences
Funding OrganizationNSFC[11078004, 11533009, 11503084, 11603074] ; Key Laboratory of Geospace Environment, CAS, University of Science & Technology of China ; Huairou Solar Observing Station, National Astronomical Observatories Chinese Academy of Sciences
Language英语
Subject Area天文学 ; 天文学其他学科
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherSPRINGER
Publication PlaceVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN0038-0938
URL查看原文
WOS IDWOS:000423067600005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSKY BRIGHTNESS MONITOR ; NORIKURA ; PHASE
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12200
Collection选址与日冕观测组
Corresponding AuthorZhao MY(赵明宇)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory of Geospace Environment, Chinese Academy of Sciences, University of Science & Technology of China, Hefei 230026, China
3.Department of Physics and Astronomy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
4.Chongqing University College of Optoelectronic Engineering, Chongqing 400044, China
Recommended Citation
GB/T 7714
Zhao MY,Liu Y,Elmhamdi, A.,et al. Conditions for Coronal Observations at the Lijiang Observatory in 2011[J]. SOLAR PHYSICS,2018,293(1).
APA Zhao MY.,Liu Y.,Elmhamdi, A..,Kordi, A. S..,Zhang XF.,...&Tian ZJ.(2018).Conditions for Coronal Observations at the Lijiang Observatory in 2011.SOLAR PHYSICS,293(1).
MLA Zhao MY,et al."Conditions for Coronal Observations at the Lijiang Observatory in 2011".SOLAR PHYSICS 293.1(2018).
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