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Observational studies show that there is a strong link between the formationand evolution of galaxies and the growth of supermassive black holes (SMBH) attheir centers. However, the underlying physics of this observed relation ispoorly understood. In order to study the effects of X-ray radiation on thesurroundings of the black hole, we implement X-ray Dominated Region (XDR)physics into Enzo and use the radiation transport module Moray to calculate theradiative transfer for a polychromatic spectrum. In this work, we investigatethe effects of X-ray irradiation, produced by a central massive black hole(MBH) with a mass of M = 5x10^4 M_(solar), on ambient gas with solar and zerometallicity. We find that in the solar metallicity case, due to high opacity ofthe metals, the energy deposition rate in the central region (< 20 pc) is highand hence the temperatures in the center are on the order of 10^(5-7) K.Moreover, due to the cooling ability and high intrinsic opacity of solarmetallicity gas, column densities of 10^(24) cm^(-2) are reached at a radius of20 pc from the MBH. These column densities are about 3 orders of magnitudeshigher than in the zero metallicity case. Furthermore, in the zero metallicitycase an X-ray induced H II region is formed already after 5.8 Myr. This causesa significant outflow of gas (~8x10^6 M_(solar) from the central region, withthe gas reaching outflow velocities up to ~100 km s^(-1). At later times, ~23Myr after we insert the MBH, we find that the solar metallicity case alsodevelops an X-ray induced H II region, but delayed by ~17 Myr.

The Response of Metal Rich Gas to X-Ray Irradiation from a Massive Black Hole at High Redshift: Proof of Concept