Simulation of AGN feedback and its impact on galaxies

Research output: Contribution to journalArticlepeer-review

Abstract

Feedback released during the growth of supermassive black holes is expected to play a key role in shaping black hole-host galaxy co-evolution. Powerful, accretion disc driven winds have been invoked to explain both observed scaling relations (e.g., M - σ) and large-scale outflows with mass outflow rates of ∼ 100 - 1000 M⊙ yr-1 and momentum rates of up to ∼ 30 LAGN/c. Critically, how these winds couple to the host galaxy depends on if they are momentum or energy conserving. I outline observational signatures that could distinguish between these regimes and discuss their roles in establishing galaxy properties. Furthermore, I discuss high-resolution simulations exploring feedback in a multi-phase medium, highlighting how structural properties of galaxies can impact feedback efficiency. Finally, feedback, in the form of collimated jets, is expected to regulate cooling in galaxy clusters. I discuss new simulations of jet feedback using the moving-mesh code AREPO and outline the scope of our new study.

Original languageEnglish
Pages (from-to)231-234
Number of pages4
JournalProceedings of the International Astronomical Union
Volume12
Issue numberS324
DOIs
Publication statusPublished - 23 Jun 2017

Keywords

  • (galaxies:) cooling flows
  • (galaxies:) quasars: general
  • galaxies: active
  • galaxies: clusters: general
  • galaxies: evolution
  • galaxies: ISM
  • galaxies: jets
  • methods: numerical

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