Cosmic Ray Removal in Fiber Spectroscopic Image
文献类型：期刊论文
| 作者 | Bai, Zhongrui1,2 ; Zhang, Haotong2; Yuan, Hailong2; Carlin, Jeffrey L.3,4; Li, Guangwei2; Lei, Yajuan2; Dong, Yiqiao2; Yang, Huiqin2; Zhao, Yongheng1,2; Cao, Zihuang2
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
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| 出版日期 | 2017-02-01 |
| 卷号 | 129期号:972 |
| 关键词 | techniques: image processing |
| 英文摘要 | Single-exposure spectra in large spectral surveys are valuable for time domain studies such as stellar variability, but there is no available method to eliminate cosmic rays for single-exposure, multi-fiber spectral images. In this paper, we describe a new method to detect and remove cosmic rays in multi-fiber spectroscopic single exposures. Through the use of two-dimensional profile fitting and a noise model that considers the position-dependent errors, we successfully detect as many as 80% of the cosmic rays and correct the cosmic ray polluted pixels to an average accuracy of 97.8%. Multiple tests and comparisons with both simulated data and real LAMOST data show that the method works properly in detection rate, false detection rate, and validity of cosmic ray correction. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SPACE-TELESCOPE IMAGES ; SINGLE IMAGES ; REJECTION ; ALGORITHM ; HITS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000391876100001 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8287]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 3.LSST, 933 North Cherry Ave, Tucson, AZ 85721 USA 4.Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA |
| 推荐引用方式 GB/T 7714 | Bai, Zhongrui,Zhang, Haotong,Yuan, Hailong,et al. Cosmic Ray Removal in Fiber Spectroscopic Image[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2017,129(972). |
| APA | Bai, Zhongrui.,Zhang, Haotong.,Yuan, Hailong.,Carlin, Jeffrey L..,Li, Guangwei.,...&Yang,Huiqin.(2017).Cosmic Ray Removal in Fiber Spectroscopic Image.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,129(972). |
| MLA | Bai, Zhongrui,et al."Cosmic Ray Removal in Fiber Spectroscopic Image".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 129.972(2017). |
入库方式： OAI收割
来源：国家天文台
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