AGN feedback mechanism in cool-core cluster galaxies

In this talk I will explain the heating and cooling mechanism in cool-core cluster 
galaxies. Active Galactic Nuclei (AGN) in the center of galaxies group and clusters are 
believed to play an important role in galaxy formation and cluster evolution, by regulating 
the cooling of the hot gas between them. The current generation X-ray telescopes, like 
Chandra and XMM-Newton have revealed a complex relation between heating and cooling, 
via spectroscopically measurement of gas cooling and imaging of the interaction of jets 
and gas in the core of the clusters. However, the physics of the balance between heating 
and cooling process is known for only few nearest systems and so remains poorly 
understood. Apart from this I will briefly explain the CZTI calibration part as well as my 
future plan.