Infrared imaging solar spectrograph at Purple Mountain Observatory

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 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
刊名	SOLAR PHYSICS
	1999-03-01
卷号	185 期号:1 页码:69-76
关键词	FLARE SPECTROSCOPY INSTRUMENT RESOLUTION LINE
英文摘要	Since 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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	FLARE ; SPECTROSCOPY ; INSTRUMENT ; RESOLUTION ; LINE
收录类别	SCI
语种	英语
WOS记录号	WOS:000079991800006
公开日期	2013-02-01
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8309]
专题	紫金山天文台_太阳高能及相关物理过程研究团组
作者单位	Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 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.