jianjie

Chen Yongjun
(Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030)

Some latest studies on microquasars are comprehensively reviewed. Microquasars with relativistic jets mimic, on a much smaller scale, many of the phenomena seen in quasars. The X-ray emission from these objects probes the inner accretion disk and immediate surroundings of the black hole. Along with observations at lower frequencies, a great progress has been made in research fields such as the dynamical model of accretion disk, the connection between accretion of matter onto black holes and the origin of relativistic jets as well as the superluminal motion of jets. New evidences on the existence of black holes are also found in microquasars. Their studies open the way for a better understanding of relativistic jets and accretion of matter onto black holes seen elsewhere in the universe.