Formation of Fermi Bubbles by Tidal Disruption Events at Galactic Center

Processes of dissipation of energy released during capture and disruption stars by Galactic central Black hole. This process should periodically happen in the Galactic center and affect Galactic center environment as well as Galactic halo. Routine star disruptions by the central supermassive black hole BH provide enough cumulative energy to form the Fermi Bubbles. A single star of super-Eddington eruption provide an subsonic outflow gas whose total energy is about $10^{52}$ erg. The average rate of disruption events is expected to be $10^{-4}-10^{-5}$yr$^{-1}$ that provides the average power of energy release in the GC $\dot{W}\sim 3\times 10^{41}$ erg s$^{-1}$, just needed to support Fermi Bubbles in the halo. In the exponential atmosphere the energy from the GC propagates perpendicular to the Galactic plane and provides symmetric features in the halo.