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Testing photometric redshift measurements with filter definition of the Chinese Space Station Optical Survey (CSS-OS)

文献类型：期刊论文

作者Cao, Ye2,3; Gong, Yan2; Meng, Xian-Min4; Xu, Cong K.5,6; Chen, Xuelei2,3,7; Guo, Qi2; Li, Ran2,3; Liu, Dezi8; Xue, Yongquan1,9; Cao, Li4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2018-10-01
卷号480期号:2页码:2178-2190
ISSN号0035-8711
关键词cosmology: observations large-scale structure of universe
DOI10.1093/mnras/sty1980
英文摘要The Chinese Space Station Optical Survey (CSS-OS) is a major science project of the Space Application System of the China Manned Space Program. This survey is planned to perform both photometric imaging and slitless spectroscopic observations, and it will focus on different cosmological and astronomical goals. Most of these goals are tightly dependent on the accuracy of photometric redshift (photo-z) measurement, especially for the weak gravitational lensing survey as a main science driver. In this work, we assess if the current filter definition can provide accurate photo-z measurement to meet the science requirement. We use the COSMOS galaxy catalogue to create a mock catalogue for the CSS-OS. We compare different photo-z codes and fitting methods that use the spectral energy distribution template-fitting technique, and choose to use a modified LEPHARE code in photo-z fitting process. Then we investigate the CSS-OS photo-z accuracy in certain ranges of filter parameters, such as band position, width, and slope. We find that the current CSS-OS filter definition can achieve reasonably good photo-z results with sigma(z) similar to 0.02 and outlier fraction similar to 3 per cent.
WOS关键词DIGITAL SKY SURVEY ; HUBBLE-DEEP-FIELD ; ARTIFICIAL NEURAL-NETWORKS ; SMALL-MAGELLANIC-CLOUD ; STAR-FORMING GALAXIES ; INTERSTELLAR EXTINCTION ; COSMOS FIELD ; QUASARS ; EVOLUTION ; SPECTROPHOTOMETRY
资助项目Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; MoST 863 program[2012AA121701] ; CAS grant[QYZDJ-SSW-SLH017] ; NSFC[11373030] ; China Manned Space Program through its Space Application System ; National key Research Program of China 'Scientific Big Data Management System'[2016YFB1000605] ; [NSFC-11773031] ; [NSFC-11633004] ; [NSFC-11643003] ; [NSFC-11333001] ; [11173001] ; [NSFC-11473026] ; [11421303]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000449614800058
资助机构Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; MoST 863 program ; MoST 863 program ; CAS grant ; CAS grant ; NSFC ; NSFC ; China Manned Space Program through its Space Application System ; China Manned Space Program through its Space Application System ; National key Research Program of China 'Scientific Big Data Management System' ; National key Research Program of China 'Scientific Big Data Management System' ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; MoST 863 program ; MoST 863 program ; CAS grant ; CAS grant ; NSFC ; NSFC ; China Manned Space Program through its Space Application System ; China Manned Space Program through its Space Application System ; National key Research Program of China 'Scientific Big Data Management System' ; National key Research Program of China 'Scientific Big Data Management System' ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; MoST 863 program ; MoST 863 program ; CAS grant ; CAS grant ; NSFC ; NSFC ; China Manned Space Program through its Space Application System ; China Manned Space Program through its Space Application System ; National key Research Program of China 'Scientific Big Data Management System' ; National key Research Program of China 'Scientific Big Data Management System' ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; Bairen program from the National Astronomical Observatories, Chinese Academy of Sciences ; MoST 863 program ; MoST 863 program ; CAS grant ; CAS grant ; NSFC ; NSFC ; China Manned Space Program through its Space Application System ; China Manned Space Program through its Space Application System ; National key Research Program of China 'Scientific Big Data Management System' ; National key Research Program of China 'Scientific Big Data Management System'
源URL[http://ir.bao.ac.cn/handle/114a11/23342]  
专题中国科学院国家天文台
通讯作者Cao, Ye; Gong, Yan; Zhan, Hu
作者单位1.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, Beijing 100012, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
6.CAS, South Amer Ctr Astron, Camino El Observ 1515, Santiago 7591245, Chile
7.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
8.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
9.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Ye,Gong, Yan,Meng, Xian-Min,et al. Testing photometric redshift measurements with filter definition of the Chinese Space Station Optical Survey (CSS-OS)[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,480(2):2178-2190.
APA Cao, Ye.,Gong, Yan.,Meng, Xian-Min.,Xu, Cong K..,Chen, Xuelei.,...&Zhan, Hu.(2018).Testing photometric redshift measurements with filter definition of the Chinese Space Station Optical Survey (CSS-OS).MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,480(2),2178-2190.
MLA Cao, Ye,et al."Testing photometric redshift measurements with filter definition of the Chinese Space Station Optical Survey (CSS-OS)".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 480.2(2018):2178-2190.

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