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Feedback likely plays a vital role in the formation of dwarf galaxies. While stellar processes have long been considered the main source of feedback, recent studies have revealed tantalizing signs of AGN feedback in dwarf galaxies. In this…

Active galactic nuclei (AGN) are among the most energetic phenomena in the universe, capable of regulating star formation in galaxies via radiative and mechanical feedback. While AGN feedback is well studied in host galaxies, its influence…

星系天体物理 · 物理学 2025-07-14 Apashanka Das , Biswajit Pandey

The feedback from active galactic nuclei (AGN) plays a crucial role in regulating the thermodynamics and the dynamics of the intracluster medium (ICM). Studying the turbulent patterns of the hot and warm ionized phases may allow us to…

星系天体物理 · 物理学 2025-05-14 Stefano Sotira , Franco Vazza , Fabrizio Brighenti

We present a study of the evolution of the galaxy Velocity Dispersion Function (VDF) from z=0 to z=1.5 using photometric data from the UKIDSS Ultra Deep Survey (UDS) and Newfirm Medium Band Survey (NMBS) COSMOS surveys. The VDF has been…

This work presents a study of galactic outflows driven by stellar feedback. We extract main sequence disc galaxies with stellar mass $10^9\le$ M$_{\star}/$M$_{\odot} \le 5.7\times10^{10}$ at redshift $z=0$ from the highest resolution…

To tackle the still unsolved and fundamental problem of the role of Active Galactic Nuclei (AGN) feedback in shaping galaxies, in this work we implement a new physical treatment of AGN-driven winds into our semi-analytic model of galaxy…

星系天体物理 · 物理学 2023-06-28 N. Menci , F. Fiore , F. Shankar , L. Zanisi , C. Feruglio

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…

Aims. Recent observational studies suggest that feedback from active galactic nuclei (AGNs) may play an important role in the formation and evolution of low-mass dwarf galaxies, an issue that has received little attention from a theoretical…

星系天体物理 · 物理学 2025-02-27 Elena Arjona-Galvez , Arianna Di Cintio , Robert J. J. Grand

We present sensitive 870$\mu$m continuum measurements from our ALMA programmes of 114 X-ray selected AGN in the CDF-S and COSMOS fields. We use these observations in combination with data from Spitzer and Herschel to construct a sample of…

The redshift distribution of galactic-scale lensing systems provides a laboratory to probe the velocity dispersion function (VDF) of early-type galaxies (ETGs) and measure the evolution of early-type galaxies at redshift z ~ 1. Through the…

星系天体物理 · 物理学 2021-03-09 Shuaibo Geng , Shuo Cao , Yuting Liu , Tonghua Liu , Marek Biesiada , Yujie Lian

Large-scale outflows driven by AGNs are an important element of galaxy evolution. Detailed analysis of their properties allows us to probe the activity history of the galactic nucleus and, potentially, other properties of the host galaxy. A…

星系天体物理 · 物理学 2025-10-17 Kastytis Zubovas , Matas Tartėnas

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…

星系天体物理 · 物理学 2023-06-21 William E. Clavijo-Bohórquez , Elisabete M. de Gouveia Dal Pino , Claudio Melioli

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…

星系天体物理 · 物理学 2017-07-26 Zachary Dugan , Volker Gaibler , Joseph Silk

This is the first paper in a series using our MACER framework to investigate the evolution of a disk galaxy, which emphasizes the role of active galactic nucleus (AGN) feedback and incorporates cosmological inflows. This paper presents the…

星系天体物理 · 物理学 2026-03-13 Yuxuan Zou , Feng Yuan , Suoqing Ji , Luis C. Ho , Yingjie Peng , Jing Wang , Bocheng Zhu , Tao Wang

Contrary to the standard lore, there is mounting observational evidence that feedback from active galactic nuclei (AGN) may also play a role at the low-mass end of the galaxy population. We investigate this using the cosmological simulation…

星系天体物理 · 物理学 2021-03-22 Sophie Koudmani , Nicholas A. Henden , Debora Sijacki

Galactic outflows, driven by active galactic nuclei (AGN), play a crucial role in galaxy formation and in the self-regulated growth of supermassive black holes (BHs). AGN feedback couples to and affects gas, rather than stars, and in many,…

星系天体物理 · 物理学 2018-04-10 Tilman Hartwig , Marta Volonteri , Gohar Dashyan

We present a new approach for quantifying the abundance of galaxy clusters and constraining cosmological parameters using dynamical measurements. In the standard method, galaxy line-of-sight (LOS) velocities, $v$, or velocity dispersions…

宇宙学与河外天体物理 · 物理学 2017-01-25 M. Ntampaka , H. Trac , J. Cisewski , L. C. Price

The feedback mechanisms triggered by supernova (SN) events and active galactic nuclei (AGN) play a central role in regulating the star formation and shaping galaxy properties. However, quantifying the impact and efficiency of these…

星系天体物理 · 物理学 2024-07-12 M. C. Zerbo , M. E. De Rossi , M. A. Lara-López , S. A. Cora , L. J. Zenocratti

Metals in the hot gaseous halos of galaxies encode the history of star formation as well as the feedback processes that eject metals from the galaxies. X-ray observations suggest that massive galaxies have extended distributions of metals…

Feedback likely plays a crucial role in resolving discrepancies between observed and theoretical predictions of dwarf galaxy properties. Stellar feedback was once believed to be sufficient to explain these discrepancies, but it has thus far…

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