Multiple Shock Fronts in RBS 797: The Chandra Window on Shock Heating in Galaxy Clusters

Using $\sim$427 ks of Chandra observations, we present a study shock heating and ICM cooling in the galaxy cluster RBS 797. We discover three nested pairs weak shocks at roughly 50 kpc, 80 kpc 130 from center. The total energy associated with is $\sim6\times10^{61}$ erg, central AGN driving pair every 20-30 Myr power $P_{sh}\approx10^{46}$ erg s$^{-1}$. Based on its morphology age ($\sim$30 Myr), inner cocoon four equidistant X-ray cavities previously discovered. From thermodynamic analysis 30 find evidence for condensation into colder gas between behind cavities. mechanical (cavities shocks) $3.4\times10^{46}$ s$^{-1}$ can balance radiative losses, estimated as $L_{cool} = 2.3\times10^{45}$ By building plots $P_{cav}$ vs. $L_{cool}$, $P_{shock}$ $L_{cool}$ $P_{tot}$ 797 14 other clusters, groups elliptical galaxies where both are detected, verify that most powerful outbursts found strongest systems. Ultimately, observe exceeds losses by factor different FR I II radio galaxies, being less than few tens Is (as 797) more hundred IIs.