Outflows of stars due to quasar feedback

@article{Zubovas2013OutflowsOS,
  title={Outflows of stars due to quasar feedback},
  author={Kastytis Zubovas and S Nayakshin and Sergey Yu. Sazonov and Rashid A. Sunyaev},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={431},
  pages={793-798}
}
Quasar feedback outflows are commonly invoked to drive gas out of galaxies in the early gas-rich epoch to terminate growth of galaxies. Here we present simulations that show that AGN feedback may drive not only gas but also stars out of their host galaxies under certain conditions. The mechanics of this process is as following: (1) AGN-driven outflows accelerate and compress gas filling the host galaxy; (2) the accelerated dense shells become gravitationally unstable and form stars on radial… 

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References

SHOWING 1-10 OF 44 REFERENCES

Quasar feedback revealed by giant molecular outflows

In the standard scenario for galaxy evolution young star-forming galaxies transform into red bulge-dominated spheroids, where star formation has been quenched. To explain this transformation, a

MASSIVE MOLECULAR OUTFLOWS AND NEGATIVE FEEDBACK IN ULIRGs OBSERVED BY HERSCHEL-PACS

Mass outflows driven by stars and active galactic nuclei (AGNs) are a key element in many current models of galaxy evolution. They may produce the observed black-hole–galaxy mass relation and

Quasar feedback: accelerated star formation and chaotic accretion

Growing supermassive black holes (SMBHs) are believed to influence their parent galaxies in a negative way, terminating their growth by ejecting gas before it can turn into stars. Here we present

Jet-induced star formation in gas-rich galaxies

Feedback from active galactic nuclei (AGN) has become a major component in simulations of galaxy evolution, in particular for massive galaxies. AGN jets have been shown to provide a large amount of

Modelling feedback from stars and black holes in galaxy mergers

We describe techniques for incorporating feedback from star formation and black hole (BH) accretion into simulations of isolated and merging galaxies. At present, the details of these processes

Energy input from quasars regulates the growth and activity of black holes and their host galaxies

Simulations that simultaneously follow star formation and the growth of black holes during galaxy–galaxy collisions find that, in addition to generating a burst of star formation, a merger leads to strong inflows that feed gas to the supermassive black hole and thereby power the quasar.

Cosmological simulations of the growth of supermassive black holes and feedback from active galactic nuclei: method and tests

We present a method that self-consistently tracks the growth of supermassive black holes (BHs) and the feedback from active galactic nuclei (AGN) in cosmological, hydrodynamical simulations. Our

CLEARING OUT A GALAXY

It is widely suspected that active galactic nucleus (AGN) activity ultimately sweeps galaxies clear of their gas. We work out the observable properties required to achieve this. Large-scale

BLACK HOLES IN BULGELESS GALAXIES: AN XMM-NEWTON INVESTIGATION OF NGC 3367 AND NGC 4536

The vast majority of optically identified active galactic nuclei (AGNs) in the local universe reside in host galaxies with prominent bulges, supporting the hypothesis that black hole formation and

Self-regulated growth of supermassive black holes by a dual jet-heating active galactic nucleus feedback mechanism: methods, tests and implications for cosmological simulations

We develop a new sub-grid model for the growth of supermassive Black Holes (BHs) and their associated Active Galactic Nuclei (AGN) feedback in hydrodynamical cosmological simulations. Assuming that