PMO OpenIR  > 太阳高能及相关物理过程研究团组
Infrared imaging solar spectrograph at Purple Mountain Observatory
Li, H; Fan, ZY; You, JQ
1999-03-01
Source PublicationSOLAR PHYSICS
Volume185Issue:1Pages:69-76
AbstractSince 1986, we have made some improvements to the multichannel solar spectrograph at Purple Mountain Observatory (PMO) step by step, and now we have developed and added to it a multichannel infrared imaging solar spectrograph. The original spectrograph can be used to observe simultaneously solar activity at 9 wave bands including Ca II H and K line, Mg I b line, He I D-3 line and H alpha through H-infinity. The newly developed infrared imaging spectrograph can work in three wavelengths, i.e., He I 10830 Angstrom, Ca II 8542 Angstrom, and H alpha. We replaced plates in the original system with CCDs and placed an image reducer before each CCD in order to match the CCD pixel size. The dispersions for He I 10830 Angstrom, Carr 8542 Angstrom, and H alpha of the new imaging solar spectrograph are 0.0693 Angstrom, 0.0767 Angstrom, and 0.0754 Angstrom per CCD pixel respectively, and each vertical CCD pixel represents 0.34 are sec of solar disk. We can obtain the line-center and off-band intensities of the three lines and the intensities of continua adjacent to these lines through the new instrument. We can also acquire velocity maps and line profiles. Therefore, it is specially suitable for two-dimensional (2D) spectroscopic observations of solar flares and active regions. We carry out scanning observation by rotating the second mirror of the coelostat system. In this paper, we introduce the improvements we made and the new imaging solar spectrograph. Some observation results are also presented in this article.
KeywordFlare Spectroscopy Instrument Resolution Line
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordFLARE ; SPECTROSCOPY ; INSTRUMENT ; RESOLUTION ; LINE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000079991800006
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8309
Collection太阳高能及相关物理过程研究团组
AffiliationAcad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Li, H,Fan, ZY,You, JQ. Infrared imaging solar spectrograph at Purple Mountain Observatory[J]. SOLAR PHYSICS,1999,185(1):69-76.
APA Li, H,Fan, ZY,&You, JQ.(1999).Infrared imaging solar spectrograph at Purple Mountain Observatory.SOLAR PHYSICS,185(1),69-76.
MLA Li, H,et al."Infrared imaging solar spectrograph at Purple Mountain Observatory".SOLAR PHYSICS 185.1(1999):69-76.
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