AGN Feedback in Massive Galaxies

  • July 24, 2017, 2:00 pm
  • Pawel Biernacki, ETH-Zurich
Abstract:
Supermassive Black Holes (SMBH) are found in the central region of massive galaxies at all redshift in the form of Active Galactic Nuclei (AGN) and are believed to regulate star formation in massive galaxies. Using improved sink particle algorithm to model SMBH in the RAMSES code we studied effects of coevolution of SMBH and its host galaxy in massive, isolated, gas-rich halo. I am going to show how different feedback mechanisms regulate growth of the SMBH and its dynamics. I will argue that existence of massive central stellar component (bulge or nuclear star cluster) is necessary condition for SMBH growth and subsequent feedback. In the second part of the talk I will discuss effects of supernova and AGN feedbacks acting together on the star formation rate and morphology of outflows. Cooperation between feedback modes can explain some of the massive molecular outflows seen in z~3 galaxies.