Forecast of Cosmological Constraints with Type Ia Supernovae from the Chinese Space Station Telescope

Understand

The 2-m aperture Chinese Space Station Telescope (CSST), which observes at wavelengths ranging from 255 to 1000 nm, is expected to start science operations in 2024.

• An ultra-deep field observation program covering approximately 10 square degrees is proposed with supernovae (SNe) and other transients as one of its primary science drivers.
• This paper presents the simulated detection results of type Ia supernovae (SNe Ia) and explores the impact of new datasets on the determinations of cosmological parameters.
• The simulated observations are conducted with an exposure time of 150 s and cadences of 10, 20, and 30 days.