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...

Almost 100 years after the prediction of general relativity, the existence of black holes has finally been confirmed. The existence of stellar-mass black holes has been confirmed by the detection of gravitational waves, and the existence of supermassive black holes has been confirmed by imaging with the EHT. However, the...