Mock Observations for the CSST Mission: Main Surveys-the Slitless Spectroscopy Simulation
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arXiv
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| Autores principales: | , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866915619875586048 |
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| author | Zhang, Xin Fang, Yue-dong Wei, Cheng-liang Li, Guo-liang Liu, Feng-shan Ji, Hang-xin Tian, Hao Li, Nan Meng, Xian-min Chen, Jian-jun Wang, Xia Wang, Rui Liu, Chao Hu, Zhong-wen Li, Ran Wei, Peng Tang, Jing |
| author_facet | Zhang, Xin Fang, Yue-dong Wei, Cheng-liang Li, Guo-liang Liu, Feng-shan Ji, Hang-xin Tian, Hao Li, Nan Meng, Xian-min Chen, Jian-jun Wang, Xia Wang, Rui Liu, Chao Hu, Zhong-wen Li, Ran Wei, Peng Tang, Jing |
| contents | The China Space Station Telescope (CSST), slated to become China's largest space-based optical telescope in the coming decade, is designed to conduct wide-field sky surveys with high spatial resolution. Among its key observational modes, slitless spectral observation allows simultaneous imaging and spectral data acquisition over a wide field of view, offering significant advantages for astrophysical studies. Currently, the CSST is in the development phase and lacks real observational data. As a result, the development of its data processing pipeline and scientific pre-research must rely on the mock data generated through simulations. This work focuses on developing a simulation framework for the CSST slitless spectral imaging system, analyzing its spectral dispersing properties and structural design. Additionally, the detection performance of the slitless spectral system is assessed for various astrophysical targets. Simulation results demonstrate that nearly all 1st order spectra are accompanied by corresponding 0th order images, facilitating accurate source identification. Furthermore, the GI spectral band exhibits superior detection efficiency compared to the GV and GU bands, establishing it as the primary observational band for stellar and galactic studies. This work successfully develops a simulation framework for the CSST slitless spectroscopic equipment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_06917 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Mock Observations for the CSST Mission: Main Surveys-the Slitless Spectroscopy Simulation Zhang, Xin Fang, Yue-dong Wei, Cheng-liang Li, Guo-liang Liu, Feng-shan Ji, Hang-xin Tian, Hao Li, Nan Meng, Xian-min Chen, Jian-jun Wang, Xia Wang, Rui Liu, Chao Hu, Zhong-wen Li, Ran Wei, Peng Tang, Jing Instrumentation and Methods for Astrophysics The China Space Station Telescope (CSST), slated to become China's largest space-based optical telescope in the coming decade, is designed to conduct wide-field sky surveys with high spatial resolution. Among its key observational modes, slitless spectral observation allows simultaneous imaging and spectral data acquisition over a wide field of view, offering significant advantages for astrophysical studies. Currently, the CSST is in the development phase and lacks real observational data. As a result, the development of its data processing pipeline and scientific pre-research must rely on the mock data generated through simulations. This work focuses on developing a simulation framework for the CSST slitless spectral imaging system, analyzing its spectral dispersing properties and structural design. Additionally, the detection performance of the slitless spectral system is assessed for various astrophysical targets. Simulation results demonstrate that nearly all 1st order spectra are accompanied by corresponding 0th order images, facilitating accurate source identification. Furthermore, the GI spectral band exhibits superior detection efficiency compared to the GV and GU bands, establishing it as the primary observational band for stellar and galactic studies. This work successfully develops a simulation framework for the CSST slitless spectroscopic equipment. |
| title | Mock Observations for the CSST Mission: Main Surveys-the Slitless Spectroscopy Simulation |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2511.06917 |