English
Related papers

Related papers: Understanding Galaxy Mergers & AGN Feedback with U…

200 papers

We investigate the effect of embedded active galactic nuclei (AGN) in galaxy mergers on the CO molecular line emission by combining non-local thermodynamic equilibrium (LTE) radiative transfer calculations with hydrodynamic simulations. We…

Double-peaked narrow emission lines in active galactic nucleus (AGN) spectra can be produced by AGN outflows, rotation, or dual AGNs, which are AGN pairs in ongoing galaxy mergers. Consequently, double-peaked narrow AGN emission lines are…

Interactions between galaxies are predicted to cause gas inflows that can potentially trigger nuclear activity. Since the inflowing material can obscure the central regions of interacting galaxies, a potential limitation of previous optical…

Astrophysics of Galaxies · Physics 2015-06-19 Shobita Satyapal , Sara L. Ellison , William McAlpine , Ryan C. Hickox , David R. Patton , J. Trevor Mendel

We study the effects of Active Galactic Nuclei (AGN) feedback on the formation and evolution of galaxies in a semi-analytic model of galaxy formation. This model is an improved version of the one described by Cora (2006), which now…

Astrophysics · Physics 2009-11-13 Claudia del P. Lagos , Sofia A. Cora , Nelson D. Padilla , .

Galaxy mergers funnel gas toward the nuclei, igniting starbursts and active galactic nuclei (AGNs). The AGN feedback can reshape the host galaxy and regulate both star formation and super-massive black-hole (SMBH) accretion. Using VLT/MUSE…

Astrophysics of Galaxies · Physics 2025-09-26 Xiaoyu Xu , Meicun Hou , Zhiyuan Li , Sijia Peng , Zhao Su , Zongnan Li , Fuyan Bian , Junfeng Wang

We investigate the simultaneous triggering of active galactic nuclei (AGN) in merging galaxies, using a large suite of high-resolution hydrodynamical simulations. We compute dual-AGN observability time-scales using bolometric, X-ray, and…

Astrophysics of Galaxies · Physics 2017-06-28 Pedro R. Capelo , Massimo Dotti , Marta Volonteri , Lucio Mayer , Jillian M. Bellovary , Sijing Shen

The role of feedback in triggering or quenching star formation and hence driving galaxy evolution can be directly studied with high resolution integral field observations. The manifestation of feedback in shocks is particularly important to…

We perform high resolution N-body+SPH simulations of isolated Milky-Way-like galaxies and major mergers between them, to investigate the effect of feedback from both an active galactic nucleus (AGN) and supernovae on the galaxy's evolution.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Richard D. A. Newton , Scott T. Kay

It is still a matter of intense debate how supermassive black holes (SMBH) grow, and the role played by feedback from active galactic nuclei (AGN) in the co-evolution of SMBHs and galaxies. To test the coevolution proposed by theoretical…

Astrophysics of Galaxies · Physics 2022-11-30 George Mountrichas , Francesco Shankar

Mergers are suspected to be reliable triggers of both starformation and AGN activity. However, the exact timing of this process remains poorly understood. Here, we present deep imaging and long slit spectroscopy data of a sample of four…

Cosmology and Nongalactic Astrophysics · Physics 2013-03-11 Carolin Villforth , Fred Hamann

A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star formation in early-type galaxies at later…

The question of whether galaxy mergers are linked to the triggering of active galactic nuclei (AGN) continues to be a topic of considerable debate. The issue can be broken down into two distinct questions: 1) Can galaxy mergers trigger AGN?…

We present a numerical study of the impact of AGN accretion and feedback on the star formation history of barred disc galaxies. Our goal is to determine whether the effect of feedback is positive (enhanced star formation) or negative…

Astrophysics of Galaxies · Physics 2017-06-28 Fidèle Robichaud , David Williamson , Hugo Martel , Daisuke Kawata , Sara L. Ellison

Galaxy major mergers are a potential mechanism for triggering active galactic nuclei (AGN) activity, but their role remains debated, particularly beyond the local Universe. We aim to shed light on the merger-AGN connection at $z=0.5$-$2$,…

Astrophysics of Galaxies · Physics 2026-04-29 A. La Marca , B. Margalef-Bentabol , L. Wang , S. C. Trager , V. Rodriguez-Gomez , G. Martin

We use hydrodynamical simulations to study the color transformations induced by star formation and active galactic nuclei (AGN) during major mergers of spiral galaxies. Our modeling accounts for radiative cooling, star formation, and…

Astrophysics · Physics 2009-11-10 Volker Springel , Tiziana Di Matteo , Lars Hernquist

Galaxy mergers have long been proposed as a mechanism for funneling gas toward galactic centres, potentially triggering accretion onto supermassive black holes (SMBHs) and igniting active galactic nuclei (AGN). While simulations often…

Galaxy-galaxy interactions are predicted to cause gas inflows leading to enhanced nuclear star formation. In this paper we test the further prediction that the gas inflows lead to enhanced accretion onto the central supermassive black hole,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Sara L. Ellison , David R. Patton , J. Trevor Mendel , Jillian M. Scudder

Representing simultaneous black hole accretion during a merger, binary active galactic nuclei (AGNs) could provide valuable observational constraints to models of galaxy mergers and AGN triggering. High-resolution radio interferometer…

Astrophysics of Galaxies · Physics 2015-12-09 Hai Fu , J. M. Wrobel , A. D. Myers , S. G. Djorgovski , Lin Yan

The kinematic disturbances associated with major galaxy mergers are known to produce gas inflows, which in turn may trigger accretion onto the supermassive black holes (SMBH) of the participant galaxies. While this effect has been studied…

Astrophysics of Galaxies · Physics 2023-01-25 Robert W. Bickley , Sara L. Ellison , David R. Patton , Scott Wilkinson