Time-Domain astro and variable source observation survey

Time domain astronomy is one of the prosperous sub-divisions recent years, which explores the properties and physical origins such as variable and transient sources by observing the spatial and temporal variations of various types of celestial bodies in the universe. Observations of variable and transient sources are an important part of the field of time-domain astronomy, and modern astronomical observations are commonly carried out using advanced large-field telescopes for long-term uninterrupted observations. This paper survey relationship high-energy X-ray, Gamma-ray and bursts with the variable source, refer to the binary star and black hole. Then multi-bands electromagnetic wave is discussed because that is relative to detection of the variable source and instrument sensor of mission in practice. Moreover, the paper surveys the relative ground-based and space-based telescopes and missions recent years. Lastly the new approach and strategy appear the latest mission are discussed.