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Alternative TitlePhotometric Property Variation of the #1 CCD Camera of the 1.56 m Reflector of Shanghai Astronomical Observatory
姚保安1; 沈昌钧2; 胡汉明3; 林清1
Source Publication中国科学院上海天文台年刊(Annals Shanghai Astronomical Observatory Chinese Academy of Sciences)
ClassificationPl12.21 ; TN386
Contribution Rank第3完成单位
Indexed By其他
KeywordCcd 测光 非线性


Other Abstract

The #1 CCD camera attached to the 1.56 m reflector of Shanghai Astronomical Observatory was in normal use since 2002. The camera has been repaired for several times during the more than 10 years, so its photometric property has been varied several times either. It has suffered from a kind of strange deterioration since 2004. There are some local subregions on the CCD chip where the sensitivity has decreased about 3% and non-linearity photometric results appeared. The number of these local subregions has increased since 2004. But the deterioration only appears in I band, not in B, V or R band. That is to say, only the near-infrared photons are involved. However, it has been found that severe non-linearity appears in the observed data between 2009 and 2011. In addition, the results measured by aperture photometry is very much different from that of the psf analysing methods. All the data obtained so far should be checked to determine when the non-linearity began to happen. After the camera has been repaired again in 2013, the photometric property almost returns to normal.

Funding ProjectN/A
Funding OrganizationN/A
Subject Area天文学 ; 天体物理学 ; 实测天体物理学
MOST Discipline Catalogue理学 ; 理学::天文学
Document Type期刊论文
Corresponding Author姚保安
Recommended Citation
GB/T 7714
姚保安,沈昌钧,胡汉明,等. 上海天文台1.56米望远镜#1CCD照相机的测光性能变化[J]. 中国科学院上海天文台年刊(Annals Shanghai Astronomical Observatory Chinese Academy of Sciences),2016(37):33-48.
APA 姚保安,沈昌钧,胡汉明,&林清.(2016).上海天文台1.56米望远镜#1CCD照相机的测光性能变化.中国科学院上海天文台年刊(Annals Shanghai Astronomical Observatory Chinese Academy of Sciences)(37),33-48.
MLA 姚保安,et al."上海天文台1.56米望远镜#1CCD照相机的测光性能变化".中国科学院上海天文台年刊(Annals Shanghai Astronomical Observatory Chinese Academy of Sciences) .37(2016):33-48.
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