The DOI matches its Crossref record; 95 of the 95 references it cites were found in a registry or an index.
DRIVING OUTFLOWS WITH RELATIVISTIC JETS AND THE DEPENDENCE OF ACTIVE GALACTIC NUCLEUS FEEDBACK EFFICIENCY ON INTERSTELLAR MEDIUM INHOMOGENEITY
Open accessAbstract
We examine the detailed physics of the feedback mechanism by relativistic active galactic nucleus (AGN) jets interacting with a two-phase fractal interstellar medium (ISM) in the kpc-scale core of galaxies using 29 three-dimensional grid-based hydrodynamical simulations. The feedback efficiency, as measured by the amount of cloud dispersal generated by the jet–ISM interactions, is sensitive to the maximum size of clouds in the fractal cloud distribution but not to their volume filling factor. Feedback ceases to be efficient for Eddington ratios P jet / L edd ≲ 10 −4 , although systems with large cloud complexes ≳ 50 pc require jets of Eddington ratio in excess of 10 −2 to disperse the clouds appreciably. Based on measurements of the bubble expansion rates in our simulations, we argue that sub-grid AGN prescriptions resulting in negative feedback in cosmological simulations without a multi-phase treatment of the ISM are good approximations if the volume filling factor of warm-phase material is less than 0.1 and the cloud complexes are smaller than ∼25 pc. We find that the acceleration of the dense embedded clouds is provided by the ram pressure of the high-velocity flow through the porous channels of the warm phase, flow that has fully entrained the shocked hot-phase gas it has swept up, and is additionally mass loaded by ablated cloud material. This mechanism transfers 10% to 40% of the jet energy to the cold and warm gas, accelerating it within a few 10 to 100 Myr to velocities that match those observed in a range of high- and low-redshift radio galaxies hosting powerful radio jets.
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Cites
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Cited by
Cool outflows in galaxies and their implications
Veilleux, S., Maiolino, R., Bolatto, A. D., & Aalto, S. (2020) · The Astronomy and Astrophysics Review · doi:10.1007/s00159-019-0121-9 · Cited by 466
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Dissipation of AGN jets in a clumpy interstellar medium
Dutta, R., Sharma, P., Sarkar, K. C., & Stone, J. M. (2024) · arXiv · doi:10.48550/arxiv.2401.00446 · Cited by 18
Metadata
- Authors
- Wagner, A. Y., Bicknell, G. V., & Umemura, M.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2012-09-12
- Volume
- 757
- Issue
- 2
- Pages
- 136
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2085276117
- Cited by
- 300
- References
- 95
- FWCI
- 10.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Wagner, A. Y., Bicknell, G. V., & Umemura, M. (2012). DRIVING OUTFLOWS WITH RELATIVISTIC JETS AND THE DEPENDENCE OF ACTIVE GALACTIC NUCLEUS FEEDBACK EFFICIENCY ON INTERSTELLAR MEDIUM INHOMOGENEITY. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/757/2/136
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