All-sky Guide Star Catalog for CSST  

作　　者：Hui-Mei Feng Zi-Huang Cao Man I Lam Ran Li Hao Tian Da-Yi Yin Yuan-Yu Yang Xin Zhang Dong-Wei Fan Yi-Qiao Dong Xin-Feng Li Wei Wang Long Li Hugh RAJones Yi-Han Tao Jia-Lu Nie Pei-Pei Wang Mao-Yuan Liu He-jun Yang Chao Liu 

机构地区：[1]Key Laboratory of Cosmic Rays(Tibet University),Ministry of Education,Lhasa 850000,China [2]Institute for Frontiers in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China [3]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [4]University of ChineseAcademy of Sciences,Beijing 100049,China [5]Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai200083,China [6]Technology and Engineering Center for Space Utilization.Chinese Academy of Sciences,Beijing 100094,China [7]Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China [8]Centre for Astrophysics,University of Hertfordshire,Hatfield,UK [9]Beijing University of Technology,Beijing 100124,China

出　　处：《Research in Astronomy and Astrophysics》2024年第4期35-59,共25页天文和天体物理学研究（英文版）

基　　金：the support by National Key R&D Program of China(No.2022YFF0503403,2022YFF0711500);the support of National Natural Science Foundation of China(NSFC,grant Nos.11988101,12073047,12273077,12022306,12373048,12263005);the support from the Ministry of Science and Technology of China(Nos.2020SKA0110100);the science research grants from the China Manned Space Project(Nos.CMS-CSST-2021-B01,CMSCSST-2021-A01);CAS Project for Young Scientists in Basic Research(No.YSBR-062);the support from K.C.Wong Education Foundation。

摘　　要：The China Space Station Telescope(CSST)is a two-meter space telescope with multiple back-end instruments.The Fine Guidance Sensor(FGS)is an essential subsystem of the CSST Precision Image Stability System to ensure the required absolute pointing accuracy and line-of-sight stabilization.In this study,we construct the Main Guide Star Catalog for FGS.To accomplish this,we utilize the information about the FGS and object information from the Gaia Data Release 3.We provide an FGS instrument magnitude and exclude variables,binaries,and high proper motion stars from the catalog to ensure uniform FGS guidance capabilities.Subsequently,we generate a HEALPix index,which provides a hierarchical tessellation of the celestial sphere,and employ the Voronoi algorithm to achieve a homogeneous distribution of stars across the catalog.This distribution ensures adequate coverage and sampling of the sky.The performance of the CSST guide star catalog was assessed by simulating the field of view of the FGS according to the CSST mock survey strategy catalog.The analysis of the results indicates that this catalog provides adequate coverage and accuracy.The catalog's performance meets the FGS requirements,ensuring the functioning of the FGS and its guidance capabilities.

关 键 词：catalogs ASTROMETRY instrumentation:detectors 

分 类 号：TN9[电子电信—信息与通信工程]