This workshop aims to provide an opportunity to exchange views and share information about the current status of observations and theoretical research on a wide range of aspects concerning the formation of astronomical objects. Moreover, it also serves as interim report by students in our research group who are working...

Despite the fact that the existence of black holes is now firmly established, the structure and physical mechanisms of accretion discs, jets, and disc winds remain unresolved. In order to solve these problems, collaboration between ultra-precise observations by EHT, IXPE, XRISM, etc. and the latest theoretical research is indispensable. Therefore,...