5 papers
Comparative analysis of missing data imputation methods for CSST survey: Impact on photometric redshift estimation performance
Ling Wang, Zhu Chen, Zhijian Luo +42
Improving the accuracy of photometric redshifts (photo-) is essential for reliable statistical studies of cosmology and galaxy evolution. However, missing photometric bands are…
A Multi-modal Fusion Network for Star-Galaxy Classification from CSST Simulated Datasets
Zhuoming Han, Tianmeng Zhang, Chao Liu +1
The distinction between stars and galaxies is a fundamental problem in the field of celestial classification. This issue has become challenging for these ongoing and upcoming digit…
Selecting Optimal Stellar Calibration Fields for the CSST Imaging Survey
Chenxiaoji Ling, Juanjuan Ren, Li Shao +8
The Chinese Space Station Survey Telescope (CSST) will perform a decade-long high-precision wide-field imaging survey that relies on rigorous on-orbit calibration. This necessitate…
The Size Evolution and the Size-Mass Relation of Lyman-Alpha Emitters across as Observed by JWST
Qi Song, F. S. Liu, Jian Ren +14
Understanding the morphological structures of Lyman-alpha emitters (LAEs) is crucial for unveiling their formation pathways and the physical origins of Ly emission. However, th…
An Edge-on Regular Disk Galaxy at z=5.289
Haojing Yan, Bangzheng Sun, Chenxiaoji Ling
While rotation-supported gas disks are known to exist as early as at z ~ 7, it is still a general belief that stellar disks form late in the Universe. This picture is now being cha…