Ultraviolet imager with wide-field & deep for astronomical observation and study

Base on the ultraviolet radiation characteristics of cosmic celestial models and different morphological materials, the astronomical ultraviolet band observation has important scientific significance and research value for the study of astronomical scientific problems such as searching for the cosmic missing baryons, studying the transport process of stellar and galaxies in the cosmic environment. China is currently developing the space station optical facility with an observation band covering near ultraviolet to infrared range. The wide-field deep ultraviolet imager (WDUI) is proposed on the optical facility of the China space station (CSS), which can overcome the influence of the Earth’s atmosphere and obtain the remarkable astronomical observation  efficiency in the ultraviolet band. It promotes the development level of the astronomical ultraviolet band observation instrument and promotes the observation of the ultraviolet astronomical section of the space astronomical science. Output of scientific achievements has a positive effect. This talk reviews the background of the payload proposal, the astronomical observation capability of the CSS optical facility, the scientific goals of the payload, the preliminary system design and technical characteristics of the payload, and possible other band observations.