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We explore the joint weak lensing and galaxy clustering analysis from the photometric survey operated by the China Space Station Telescope (CSST), and study the strength of the cosmological constraints. We employ a high-resolution…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-10 Qi Xiong , Yan Gong , Xingchen Zhou , Hengjie Lin , Furen Deng , Ziwei Li , Ayodeji Ibitoye , Xuelei Chen , Zuhui Fan , Qi Guo , Ming Li , Yun Liu , Wenxiang Pei

As one of Stage IV space-based telescopes, China Space Station Telescope (CSST) can perform photometric and spectroscopic surveys simultaneously to efficiently explore the Universe in extreme precision. In this work, we investigate several…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-14 Haitao Miao , Yan Gong , Xuelei Chen , Zhiqi Huang , Xiao-Dong Li , Hu Zhan

The Chinese Space Station Optical Survey (CSS-OS) is a mission to explore the vast universe. This mission will equip a 2-meter space telescope to perform a multi-band NUV-optical large area survey (over 40% of the sky) and deep survey (~1%…

Instrumentation and Methods for Astrophysics · Physics 2025-11-11 Xin Zhang , Li Cao , Xianmin Meng

Strong gravitational lensing by galaxies is a powerful tool for studying cosmology and galaxy structure. The China Space Station Telescope (CSST) will revolutionize this field by discovering up to $\sim$100,000 galaxy-scale strong lenses, a…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-12 Hengyu Wu , Yun Chen , Tonghua Liu , Xiaoyue Cao , Tian Li , Hui Li , Nan Li , Ran Li , Tengpeng Xu

The China Space Station Telescope (CSST) is the next-generation Stage~IV survey telescope. It can simultaneously perform multi-band imaging and slitless spectroscopic wide- and deep-field surveys in ten years and an ultra-deep field (UDF)…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-04 Yan Gong , Haitao Miao , Xingchen Zhou , Qi Xiong , Yingxiao Song , Yuer Jiang , Minglin Wang , Junhui Yan , Beichen Wu , Furen Deng , Xuelei Chen , Zuhui Fan , Yipeng Jing , Xiaohu Yang , Hu Zhan

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…

Instrumentation and Methods for Astrophysics · Physics 2025-11-17 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

China Space Station Telescope (CSST) is a forthcoming powerful Stage IV space-based optical survey equipment. It is expected to explore a number of important cosmological problems in extremely high precision. In this work, we focus on…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-17 Hengjie Lin , Yan Gong , Xuelei Chen , Kwan Chuen Chan , Zuhui Fan , Hu Zhan

We investigate the cosmological constraints from the void-lensing cross-correlation assuming the $w$CDM model for the Chinese Space Station Survey Telescope (CSST) photometric survey. Using Jiutian simulations, we construct a mock galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-19 Qi Xiong , Yan Gong , Junhui Yan , Furen Deng , Hengjie Lin , Xingchen Zhou , Xuelei Chen , Qi Guo , Ming Li , Yun Liu , Wenxiang Pei

Weak gravitational lensing surveys measure the distortion of the image of distant sources due to the deflections of light rays by the fluctuations of the gravitational potential along the line of sight. Since they probe the non-linear…

Astrophysics · Physics 2009-11-13 Dipak Munshi , Patrick Valageas

Cluster strong lensing cosmography is a promising probe of the background geometry of the Universe and several studies have emerged, thanks to the increased quality of observations using space and ground-based telescopes. For the first…

Cosmology and Nongalactic Astrophysics · Physics 2022-01-19 G. B. Caminha , S. H. Suyu , C. Grillo , P. Rosati

The void power spectrum is related to the clustering of low-density regions in the large-scale structure (LSS) of the Universe, and can be used as an effective cosmological probe to extract the information of the LSS. We generate the galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-01 Yingxiao Song , Qi Xiong , Yan Gong , Furen Deng , Kwan Chuen Chan , Xuelei Chen , Qi Guo , Guoliang Li , Ming Li , Yun Liu , Yu Luo , Wenxiang Pei , Chengliang Wei

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…

Instrumentation and Methods for Astrophysics · Physics 2018-08-23 Ye Cao , Yan Gong , Xian-Min Meng , Cong K. Xu , Xuelei Chen , Qi Guo , Ran Li , Dezi Liu , Yongquan Xue , Li Cao , Xiyang Fu , Xin Zhang , Shen Wang , Hu Zhan

Weak gravitational lensing (WL) causes distortions of galaxy images and probes massive structures on large scales, allowing us to understand the late-time evolution of the Universe. One way to extract the cosmological information from WL is…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-14 Chieh-An Lin

The Chinese Space Station Telescope (CSST) is China's upcoming next-generation ultraviolet and optical survey telescope, with imaging resolution capabilities comparable to the Hubble Space Telescope (HST). In this study, we utilized a…

Astrophysics of Galaxies · Physics 2025-06-11 Yuchong Luo , Anhe Sha , Jian Ren , Xin Zhang , Xianmin Meng , Nan Li , F. S. Liu

Galaxy-galaxy strong gravitational lensing (GGSL) is a powerful probe for the formation and evolution of galaxies and cosmology, while the sample size of GGSLs leads to considerable uncertainties and potential bias. The China Space Station…

Astrophysics of Galaxies · Physics 2024-07-31 Xiaoyue Cao , Ran Li , Nan Li , Rui Li , Yun Chen , Keyi Ding , Huanyuan Shan , Hu Zhan , Xin Zhang , Wei Du , Shuo Cao

With a primary goal of conducting precision weak lensing measurements from space, the COSMOS survey has imaged the largest contiguous area observed by the Hubble Space Telescope (HST) to date using the Advanced Camera for Surveys (ACS).…

Strong gravitational lensing is a powerful tool for investigating dark matter and dark energy properties. With the advent of large-scale sky surveys, we can discover strong lensing systems on an unprecedented scale, which requires efficient…

The Chinese Space Station Telescope (CSST) is a cutting-edge two-meter astronomical space telescope currently under construction. Its primary Survey Camera (SC) is designed to conduct large-area imaging sky surveys using a sophisticated…

We present a comprehensive forecast for cosmological constraints using the joint observation of the cosmic shear signal from the Chinese Space Station Survey Telescope (CSST) and the clustering signal from the next-generation gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-24 Pengfei Su , Yan Gong , Qi Xiong , Dingao Hu , Hengjie Lin , Furen Deng , Xuelei Chen

Ongoing and future wide-field galaxy surveys can be used to locate a number of clusters of galaxies with cosmic shear measurement alone. We study constraints on cosmological models using statistics of weak lensing selected galaxy clusters.…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-17 Masato Shirasaki , Takashi Hamana , Naoki Yoshida
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