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Feedback from Active Galactic Nuclei (AGN) and subsequent jet cocoons and outflow bubbles can have a significant impact on star formation in the host galaxy. To investigate feedback physics on small scales, we perform hydrodynamic…

Astrophysics of Galaxies · Physics 2017-05-03 Zachary Dugan , Volker Gaibler , Rebekka Bieri , Joseph Silk , Mubdi Rahman

Recent analytical and numerical models show that AGN outflows and jets create ISM pressure in the host galaxy that is several orders of magnitude larger than in quiescent systems. This pressure increase can confine and compress molecular…

Astrophysics of Galaxies · Physics 2015-06-19 Kastytis Zubovas , Kostas Sabulis , Rokas Naujalis

Small-scale winds driven from accretion discs surrounding active galactic nuclei (AGN) are expected to launch kpc-scale outflows into their host galaxies. However, the ways in which the structure of the interstellar medium (ISM) affects the…

Astrophysics of Galaxies · Physics 2024-08-19 Samuel Ruthven Ward , Tiago Costa , Chris M. Harrison , Vincenzo Mainieri

Stars with outflows interacting with ambient gas experience accelerations arising from the gravitational feedback induced by the interaction structure. In this work, three-dimensional (3D) local shearing box simulations are performed to…

Astrophysics of Galaxies · Physics 2025-08-12 Muxin Liu , Lile Wang , Peng Peng

We present a series of three-dimensional hydrodynamical simulations of central AGN driven jets in a dynamic, cosmologically evolved galaxy cluster. Extending previous work, we study jet powers ranging from L_jet = 10^44 erg/s to L_jet =…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Brian J. Morsony , Sebastian Heinz , Marcus Bruggen , Mateusz Ruszkowski

We present hydrodynamical simulations of major mergers of galaxies and study the effects of winds produced by active galactic nuclei (AGN) on interstellar gas in the AGN's host galaxy. We consider winds with initial velocities ~ 10,000 km/s…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Jackson DeBuhr , Eliot Quataert , Chung-Pei Ma

Most massive galaxies host a supermassive black hole at their centre. Matter accretion creates an active galactic nucleus (AGN), forming a relativistic particle wind. The wind heats and pushes the interstellar medium, producing…

Astrophysics of Galaxies · Physics 2024-09-23 Martynas Laužikas , Kastytis Zubovas

Large-scale, broad outflows are common in active galaxies. In systems where star formation coexists with an AGN, it is unclear yet the role that both play on driving the outflows. In this work we present three-dimensional radiative-cooling…

High Energy Astrophysical Phenomena · Physics 2018-09-21 E. de Gouveia Dal Pino , W. Clavijo-Bohórquez , C. Melioli

We assess the impact of starburst and AGN feedback-driven winds on the CO emission from galaxy mergers, and, in particular, search for signatures of these winds in the simulated CO morphologies and emission line profiles. We do so by…

We conducted 3D-MHD simulations to investigate the feedback processes in the central 1kpc scale of galaxies hosting both active star formation (SF) and an AGN wind. Our simulations naturally generated a turbulent and clumpy interstellar…

Astrophysics of Galaxies · Physics 2023-06-21 William E. Clavijo-Bohórquez , Elisabete M. de Gouveia Dal Pino , Claudio Melioli

Active galactic nuclei (AGN) drive fast winds in the interstellar medium of their host galaxies. It is commonly assumed that the high ambient densities and intense radiation fields in galactic nuclei imply short cooling times, thus making…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 C. -A. Faucher-Giguere , E. Quataert

Feedback from active galactic nuclei (AGN) can strongly impact the host galaxies by driving high-velocity winds that impart substantial energy and momentum to the interstellar medium (ISM). In this work, we study the impact of these winds…

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 energy and are capable of quenching…

Cosmology and Nongalactic Astrophysics · Physics 2012-09-13 Volker Gaibler , Sadegh Khochfar , Martin Krause , Joseph Silk

(Abridged) We study the interaction of relativistic jets from AGNs with the ISM in their host galaxy, using a series of Adaptive Mesh Refinement simulations of the evolution of the interaction between the cocoon produced by the jet with a…

Astrophysics · Physics 2009-11-13 V. Antonuccio-Delogu , J. Silk

Feedback from accreting SMBHs is often identified as the main mechanism responsible for regulating star-formation in AGN host galaxies. However, the relationships between AGN activity, radiation, winds, and star-formation are complex and…

We study the impact of stellar winds and supernovae on the multi-phase interstellar medium using three-dimensional hydrodynamical simulations carried out with FLASH. The selected galactic disc region has a size of (500 pc)$^2$ x $\pm$ 5 kpc…

Astrophysics of Galaxies · Physics 2017-01-25 A. Gatto , S. Walch , T. Naab , P. Girichidis , R. Wünsch , S. C. O. Glover , R. S. Klessen , P. C. Clark , T. Peters , D. Derigs , C. Baczynski , J. Puls

Dense stellar winds may mass-load the jets of active galactic nuclei, although it is unclear what are the time and spatial scales in which the mixing takes place. We study the first steps of the interaction between jets and stellar winds,…

High Energy Astrophysical Phenomena · Physics 2017-11-01 Manel Perucho , Valentí Bosch-Ramon , Maxim V. Barkov

Convection and mass loss by stellar winds are two dynamical processes that shape asymptotic giant branch (AGB) stars and their evolution. Observations and earlier 3D models indicate that giant convection cells cause high-contrast surface…

Solar and Stellar Astrophysics · Physics 2023-01-30 Bernd Freytag , Susanne Höfner

Central starbursts and Active Galactic Nuclei (AGN) are thought to be fueled by either galaxy interactions or secular processes in gravitationally unstable discs. We employ cosmological hydrodynamic simulations from the Feedback in…

AGN outflows can remove large quantities of gas from their host galaxy spheroids, potentially shutting off star formation. On the other hand, they can compress this gas, potentially enhancing or triggering star formation, at least for short…

Astrophysics of Galaxies · Physics 2017-04-27 Kastytis Zubovas , Martin A. Bourne
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