Consideration for a large-scale multi-color imaging and slitless spectroscopy survey on the Chinese space station and its application in dark energy research

Large-scale surveys will be a major effort of the international astronomical community in the next decades. These surveys will produce unprecedentedly large samples with precision measurements and will greatly advance our understanding of fundamental questions of the universe such as dark matter, dark energy, formation and evolution of various astronomical objects. The plan to construct the Chinese space station has brought a rare opportunity for space astronomy in China. Survey observations match well with the operation of the space station, and there has not been a plan for a large-scale high-resolution optical/near UV survey. This can be a unique niche for the astronomy program on board of the Chinese space station and can help China take a leading position in the enterprise of next-generation large-scale surveys. This paper reports the concept of a wide-area high-resolution multiband imaging and slitless spectroscopy survey covering wavelengths from near ultraviolet to near infrared and discusses its application in dark energy research.