报告摘要: |
The DESI is already starting its 5-year survey, which will ultimately collect more than 30 million spectra. It will greatly deepen our understanding of the Universe, the cosmology, the galaxy evolution and all other astronomical sciences. The Chinese Space Station Telescope (CSST) is an image survey covering > 17000 square degrees. The combination of the image and spectra will broaden the constraint on the galaxy evolution. In this talk, I will present the dwarf galaxy search using both CSST and DESI, and the circumgalactic mediun (CGM) study in the DESI era. |