Simulation of AGN feedback and its impact on galaxies
| Autor: | Martin Albert Bourne |
|---|---|
| Přispěvatelé: | Bourne, Martin [0000-0003-3189-1638], Apollo - University of Cambridge Repository |
| Rok vydání: | 2016 |
| Předmět: |
Physics
COSMIC cancer database Astrophysics::High Energy Astrophysical Phenomena galaxies: active (galaxies:) quasars: general Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics galaxies: jets Galaxy (galaxies:) cooling flows methods: numerical galaxies: clusters: general Space and Planetary Science galaxies: evolution Host (network) galaxies: ISM Astrophysics::Galaxy Astrophysics |
| Zdroj: | Proceedings of the International Astronomical Union. 12:231-234 |
| ISSN: | 1743-9221 1743-9213 |
| DOI: | 10.1017/s1743921317001508 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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