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Related papers: Warm Ionized Gas Outflows in Active Galactic Nucle…

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Spatially resolved spectral studies of radio-AGN host galaxies have shown that these systems can impact the ionised gas on galactic scales. However, whether jet and radiation-driven feedback occurs simultaneously is still unclear. We select…

Astrophysics of Galaxies · Physics 2025-06-04 Pranav Kukreti , Dominika Wylezalek , Marco Albán , Bruno DallAgnol de Oliveira

Radio-loud AGNs can inhabit regions with a very rich ISM. The presence of this rich medium is likely related to the origin and evolution of the host galaxy and of the active nucleus. Recent observations show that a large fraction of radio…

Astrophysics · Physics 2009-11-10 Raffaella Morganti

Basing our analysis on ROGUE I, a catalog of over 32,000 radio sources associated with optical galaxies, we provide two diagnostics to select the galaxies where the radio emission is due to an active galactic nucleus (AGN). Each of these…

Powerful winds driven by active galactic nuclei (AGN) are often invoked to play a fundamental role in the evolution of both supermassive black holes (SMBHs) and their host galaxies, quenching star formation and explaining the tight…

High Energy Astrophysical Phenomena · Physics 2015-03-26 F. Tombesi , M. Melendez , S. Veilleux , J. N. Reeves , E. Gonzalez-Alfonso , C. S. Reynolds

I report recent results on the kinematics of the inner few hundred parsecs (pc) around nearby active galactic nuclei (AGN) at a sampling of a few pc to a few tens of pc, using optical and near-infrared (near-IR) integral field spectroscopy…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Thaisa Storchi-Bergmann

The role of feedback from Active Galactic Nuclei (AGN) in the evolution of galaxies is still not not fully understood, mostly due to the lack of observational constraints in the multi-phase gas kinematics on the ten to hundred parsec…

Astrophysics of Galaxies · Physics 2020-07-15 Rogemar A. Riffel , Thaisa Storchi-Bergmann , Nadia L. Zakamska , Rogerio Riffel

Ionised gas kinematics provide crucial evidence of the impact that active galactic nuclei (AGN) have in regulating star formation in their host galaxies. Although the presence of outflows in AGN host galaxies has been firmly established,…

This paper is the second in a series in which we present intermediate-resolution spectra for a complete sample of 14 compact radio sources, taken with the aim of investigating the impact of the nuclear activity on the cirumnuclear…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-02 J. Holt , C. N. Tadhunter , R. Morganti

The effect of Active Galactic Nuclei (AGN) on their host galaxies -- in particular their levels of star formation -- remains one of the key outstanding questions of galaxy evolution. Successful cosmological models of galaxy evolution…

While stellar processes are believed to be the main source of feedback in dwarf galaxies, the accumulating discoveries of AGN in dwarf galaxies over recent years arouse the interest to also consider AGN feedback in them. Fast, AGN-driven…

We explore the kinematics of ionized gas via the [O III] $\lambda$5007 emission lines in active galactic nuclei (AGN) selected on the basis of their mid-infrared (IR) emission, and split into obscured and unobscured populations based on…

Astrophysics of Galaxies · Physics 2018-04-11 M. A. DiPompeo , R. C. Hickox , C. M. Carroll , J. C. Runnoe , J. R. Mullaney , T. C. Fischer

We obtained Keck/OSIRIS near-IR adaptive optics-assisted integral-field spectroscopy to probe the morphology and kinematics of the ionized gas in four velocity-offset active galactic nuclei (AGNs) from the Sloan Digital Sky Survey. These…

Astrophysics of Galaxies · Physics 2016-10-19 Francisco Müller-Sánchez , Julia M. Comerford , Daniel Stern , Fiona A. Harrison

We analyze VLT/MUSE observations of 37 radio galaxies from the Third Cambridge catalogue (3C) with redshift $<$0.3 searching for nuclear outflows of ionized gas. These observations are part of the MURALES project (a MUse RAdio Loud Emission…

Astrophysical models for the high-energy emission of blazars are reviewed. Blazars ejecting relativistic radio jets at small angles to the line-of-sight are the only type of active galactic nuclei (AGN) discovered above 100 MeV. The…

Astrophysics · Physics 2007-05-23 Karl Mannheim

We present a two-dimensional study of the gas distribution, excitation and kinematics of the OH absorber galaxy IRAS 19154+2704 using Gemini GMOS-IFU observations. Its continuum image shows a disturbed morphology indicative of a past or…

Active galactic nucleus (AGN) feedback is the process by which supermassive black holes in the centres of galaxies may moderate the growth of their hosts. Gas outflows from supermassive black holes release huge quantities of energy into the…

The winds of ionized gas driven by Active Galactic Nuclei (AGN) can be studied through absorption lines in their X-ray spectra. A recurring feature of these outflows is their broad ionization distribution, including essentially all…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Jonathan Stern , Ehud Behar , Ari Laor , Alexei Baskin , Tomer Holczer

Outflows are one of the most spectacular mechanisms through which active galactic nuclei (AGN) impact their host galaxy, though the role of AGN-driven outflows in global star formation regulation across the galaxy population is unclear. NGC…

We consider the emission of high energy to very high energy $\gamma$-rays in radio-quiet active galactic nuclei (AGN) or the central regions of radio-loud AGN. We use our results to estimate the $\gamma$-ray flux from the central regions of…

Astrophysics · Physics 2011-05-12 P. A. Johnson , A. Mastichiadis , R. J. Protheroe , T. S. Stanev , A. P. Szabo