The China Space Station Telescope(CSST)is the next-generation Stage IV survey telescope.It can simultaneously perform multiband imaging and slitless spectroscopic wide-and deep-field surveys in ten years and an ultra-...The China Space Station Telescope(CSST)is the next-generation Stage IV survey telescope.It can simultaneously perform multiband imaging and slitless spectroscopic wide-and deep-field surveys in ten years and an ultra-deep field(UDF)survey in two years,which are suitable for cosmological studies.Here we review several CSST cosmological probes,such as weak gravitational lensing,two-dimensional(2D)and three-dimensional(3D)galaxy clustering,galaxy cluster abundance,cosmic void,Type Ia supernovae(SNe Ia),and baryonic acoustic oscillations(BAO),and explore their capabilities and prospects in discovering new physics and opportunities in cosmology.We find that CSST will measure the matter distribution from small to large scales and the expansion history of the Universe with extremely high accuracy,which can provide percent-level stringent constraints on the property of dark energy and dark matter and precisely test the theories of gravity.展开更多
基金the support of the National Key R&D Program of China(Grant Nos.2022YFF0503404,and 2020SKA0110402)the CAS Project for Young Scientists in Basic Research(Grant No.YSBR092)+4 种基金the support of the National Natural Science Foundation of China(Grant No.12361141814)the Chinese Academy of Sciences(Grant No.ZDKYYQ20200008)the support of the National Natural Science Foundation of China(Grant No.12133006)the National Key R&D Program of China(Grant Nos.2023YFA1607800,and 2023YFA1607801)supported by the Science Research grants from the China Manned Space Project(Grant Nos.CMS-CSST-2021-B01,CMS-CSST-2021-A01,and CMS-CSST-2021A03)。
文摘The China Space Station Telescope(CSST)is the next-generation Stage IV survey telescope.It can simultaneously perform multiband imaging and slitless spectroscopic wide-and deep-field surveys in ten years and an ultra-deep field(UDF)survey in two years,which are suitable for cosmological studies.Here we review several CSST cosmological probes,such as weak gravitational lensing,two-dimensional(2D)and three-dimensional(3D)galaxy clustering,galaxy cluster abundance,cosmic void,Type Ia supernovae(SNe Ia),and baryonic acoustic oscillations(BAO),and explore their capabilities and prospects in discovering new physics and opportunities in cosmology.We find that CSST will measure the matter distribution from small to large scales and the expansion history of the Universe with extremely high accuracy,which can provide percent-level stringent constraints on the property of dark energy and dark matter and precisely test the theories of gravity.
