The circum-nuclear region in an active galaxies is often complex with presence of high excitation gas,collimated radio outflow,and starburst,besides the actively accreting super massive black hole.In studies of a number of archetypal Seyfert galaxies,we were able to evaluate the impact from the AGN by measuring mass outflow and shock heating by radio jet.For galaxies in the throes of a violent merging event such as NGC6240,we were able to resolve 70 MK hot gas surrounding the binary active black holes and discovered a large scale soft X-ray halo.The unique resolving power of Chandra X-ray imaging also enables more discovery of such dual AGN systems.