摘要:
   Black hole system wind is a very important topic in recent years. On one hand, it is due to the fact that more and more observations show that strong winds are present in both AGNs and black hole X-ray binaries. Therefore,  wind is an important ingredient of black hole accretion system. Theoretically, it is important to study how can wind be produced in black hole accretion system and what is the effect of wind on black hole accretion flow/disk. On the other hand, observations show that in galaxies, the central black hole is tightly correlated with the evolution of its host galaxy. Black hole wind can strongly interact with its host galaxy, at least in the region very close to the central engine.  A black hole accretion system mainly has two main modes, namely hot and cold modes. The wind from hot accretion flow have been studied intensively in recent years. However, the wind production by cold thin disk is still not clear. In this talk, I will first briefly review the wind production by hot accretion flow. Then, I will talk about wind production by cold thin disk. Finally, I will talk about wind feedback at parsec scale, where the fueling gas of black hole comes from.