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Simulations of active galactic nuclei (AGN) jets have thus far been performed almost exclusively using grid-based codes. We present the first results from hydrodynamical tests of AGN jets, and their interaction with the intracluster medium…

Astrophysics of Galaxies · Physics 2023-02-22 Filip Huško , Cedric G. Lacey

Active galactic nuclei (AGN) jets are powerful drivers of galaxy evolution, depositing energy and momentum into the circumgalactic and intracluster medium (CGM/ICM) and regulating gas cooling and star formation. We investigate the dynamics…

Astrophysics of Galaxies · Physics 2026-04-30 Chenze Dong , Abednego Wiliardy , Kentaro Nagamine , Yuri Oku , Akira Mizuta , Boon Kiat Oh , Renyue Cen

In this work, we use hydrodynamical simulations to explore the effects of kinetic AGN jet feedback on the progression and outcome of the major merger of two isolated, gas-rich galaxies. We present simulations that use the moving-mesh code…

Astrophysics of Galaxies · Physics 2024-02-19 Rosie Y. Talbot , Debora Sijacki , Martin A. Bourne

We present a detailed comparison between the well-known SPH code GADGET and the new moving-mesh code AREPO on a number of hydrodynamical test problems. Through a variety of numerical experiments we establish a clear link between test…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Debora Sijacki , Mark Vogelsberger , Dusan Keres , Volker Springel , Lars Hernquist

While there is overwhelming observational evidence of AGN-driven jets in galaxy clusters and groups, if and how the jet energy is delivered to the ambient medium remains unanswered. Here we perform very high resolution AGN jet simulations…

High Energy Astrophysical Phenomena · Physics 2021-06-16 Martin A. Bourne , Debora Sijacki

We present the first hydrodynamical simulations of structure formation using the new moving mesh code AREPO and compare the results with GADGET simulations based on a traditional smoothed particle hydrodynamics (SPH) technique. The two…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Mark Vogelsberger , Debora Sijacki , Dusan Keres , Volker Springel , Lars Hernquist

We present a new comprehensive model of the physics of galaxy formation designed for large-scale hydrodynamical simulations of structure formation using the moving mesh code AREPO. Our model includes primordial and metal line cooling with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Mark Vogelsberger , Shy Genel , Debora Sijacki , Paul Torrey , Volker Springel , Lars Hernquist

This is the fourth paper of our series investigating the effects of active galactic nucleus (AGN) feedback in the evolution of an elliptical galaxy using the {\it MACER} framework. While previous works considered only AGN radiation and…

Astrophysics of Galaxies · Physics 2026-05-01 Minhang Guo , Feng Yuan , Suoqing Ji , Bocheng Zhu

We discuss cosmological hydrodynamic simulations of galaxy formation performed with the new moving-mesh code AREPO, which promises higher accuracy compared with the traditional SPH technique that has been widely employed for this problem.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Dusan Keres , Mark Vogelsberger , Debora Sijacki , Volker Springel , Lars Hernquist

Using the SWIFT simulation code we study different forms of active galactic nuclei (AGN) feedback in idealized galaxy groups and clusters. We first present a physically motivated model of black hole (BH) spin evolution and a numerical…

Astrophysics of Galaxies · Physics 2023-11-16 Filip Huško , Cedric G. Lacey , Joop Schaye , Folkert S. J. Nobels , Matthieu Schaller

Jets launched by active galactic nuclei (AGN) are believed to play a significant role in shaping the properties of galaxies and provide an energetically viable mechanism through which galaxies can become quenched. Here we present a novel…

Astrophysics of Galaxies · Physics 2021-07-30 Rosie Y. Talbot , Martin A. Bourne , Debora Sijacki

We implement a black hole spin evolution and jet feedback model into SWIFT, a smoothed particle hydrodynamics code. The jet power is determined self-consistently assuming Bondi accretion, using a realistic, spin-dependant efficiency. The…

Astrophysics of Galaxies · Physics 2022-08-24 Filip Huško , Cedric G. Lacey , Joop Schaye , Matthieu Schaller , Folkert S. J. Nobels

Recollimation is a phenomenon of particular importance in the dynamic evolution of jets and in the emission of high-energy radiation. Additionally, the full comprehension of this phenomenon provides insights into fundamental properties of…

High Energy Astrophysical Phenomena · Physics 2026-01-14 A. Costa , G. Bodo , F. Tavecchio , P. Rossi , P. Coppi , A. Sciaccaluga , S. Boula

Feedback by active galactic nuclei (AGNs) is essential for regulating the fast radiative cooling of low-entropy gas at the centers of galaxy clusters and for reducing star formation rates of central ellipticals. The details of…

High Energy Astrophysical Phenomena · Physics 2019-02-20 Kristian Ehlert , Christoph Pfrommer , Rainer Weinberger , Rüdiger Pakmor , Volker Springel

It is well known that active galactic nuclei (AGN) show various forms of interaction with their host galaxy, in a number of phenomena generally called AGN feedback. In particular, the relativistic plasma jets launched by a fraction of AGN…

Astrophysics of Galaxies · Physics 2021-06-03 Marco Berton , Emilia Järvelä

Jet feedback from active galactic nuclei (AGN) harboured by brightest cluster galaxies is expected to play a fundamental role in regulating cooling in the intracluster medium (ICM). While observations and theory suggest energy within jet…

Astrophysics of Galaxies · Physics 2019-10-17 Martin A. Bourne , Debora Sijacki , Ewald Puchwein

Feedback driven by jets from active galactic nuclei is believed to be responsible for reducing cooling flows in cool-core galaxy clusters. We use simulations to model feedback from hydrodynamic jets in isolated halos. While the jet…

To investigate the differences in mechanical feedback from radio-loud and radio-quiet Active Galactic Nuclei (AGN) on the host galaxy, we perform 3D AMR hydrodynamic simulations of wide angle, radio-quiet winds with different inclinations…

Astrophysics of Galaxies · Physics 2017-07-26 Zachary Dugan , Volker Gaibler , Joseph Silk

Numerical simulations have become one of the key tools used by theorists in all the fields of astrophysics and cosmology. The development of modern tools that target the largest existing computing systems and exploit state-of-the-art…

While feedback from massive stars exploding as supernovae (SNe) is thought to be one of the key ingredients regulating galaxy formation, theoretically it is still unclear how the available energy couples to the interstellar medium and how…

Astrophysics of Galaxies · Physics 2018-04-27 Matthew C. Smith , Debora Sijacki , Sijing Shen
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