Constraining AGN feedback model with SZ profile
  Relativistic jets from AGN have a wide range of impacts on galaxy groups and
clusters and are key for understanding their formation and physical properties.
However, this non-gravitational process is not well understood. Galaxy groups
with shallow gravitational potentials are ideal laboratories to study and
constrain the AGN feedback model. We studied hot gas in ~66,000 SDSS LRG halos
with an average halo mass of 3 x 10^13 Msun using the Planck tSZ map. We have
detected their average tSZ radial profile at ~17 sigma and compared it with the
cosmo-OWLS cosmological hydrodynamical simulations with different AGN feedback
models. The best agreement has been obtained for the AGN 8.0 model in the
simulations. We have also compared our measured tSZ profile with the prediction
from the universal pressure profile assuming the self-similar relation and
found them consistent if the model accounts for the clustering of neighboring
haloes via a two-halo term.
