Mock Observations for the CSST Mission: Main Surveys -- the Mock Catalogue
Cheng-Liang Wei, Yu Luo, Hao Tian, Ming Li, Yi-Sheng Qiu, Guo-Liang Li, Yue-Dong Fang, Xin Zhang, De-Zi Liu, Nan Li, Ran Li, Huan-Yuan Shan, Lin Nie, Zizhao He, Lei Wang, Xi Kang, Dongwei Fan, Yang Chen, Xiaoting Fu, Chao Liu

TL;DR
This paper presents a comprehensive mock catalogue of stars and galaxies designed for the CSST mission, supporting image simulations and cosmological analyses by providing detailed properties validated against observational data.
Contribution
The authors developed a detailed, validated mock catalogue for the CSST mission, including galaxy properties, lensing effects, and spectral energy distributions, to aid in image processing and scientific studies.
Findings
Mock catalogue shows good agreement with observational data.
Supports multi-band imaging and spectroscopic simulations.
Enables diverse cosmological analyses for CSST.
Abstract
The Chinese Space Station Survey Telescope (CSST) is a flagship space mission, designed to carry out a large-area sky survey to explore the nature of dark matter and dark energy in the Universe. The onboard multi-band imaging and slitless spectroscopic modules will enable us to obtain photometric data for billions of galaxies and stars, as well as hundreds of millions of spectroscopic measurements, advancing various scientific analyses such as galaxy clustering and weak gravitational lensing. To support the image simulations for the main survey of the CSST mission, we present a mock catalogue of stars and galaxies. For stars, the mock catalogue is generated using either Galaxia or TRILEGAL, both of which provide a range of stellar properties to meet the requirements of CSST image simulations. For galaxies, we built a mock light-cone up to redshift z~3.5 from the cosmological Nbody…
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Taxonomy
TopicsGalaxies: Formation, Evolution, Phenomena · Astronomy and Astrophysical Research · Radio Astronomy Observations and Technology
