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Related papers: Active galactic nucleus outflows accelerate when t…

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We report the discovery of GLIMPSED-329380, a z=6.64 galaxy behind Abell S1063, which shows signs of an extreme ionised outflow driven by an active galactic nucleus (AGN). The deep JWST/NIRSpec medium grating observations show spatially…

We perform two-dimensional hydrodynamical simulations of slowly rotating accretion flows in the region of $ 0.01-7\, \mathrm{pc} $ around a supermassive black holes with $ M_\mathrm{BH} = 10^{8} M_{\odot} $. The accretion flow is irradiated…

High Energy Astrophysical Phenomena · Physics 2019-10-23 Amin Mosallanezhad , Feng Yuan , Jeremiah P. Ostriker , Fatemeh Zahra Zeraatgari , De-Fu Bu

We explore the origin of fast molecular outflows that have been observed in Active Galactic Nuclei (AGN). Previous numerical studies have shown that it is difficult to create such an outflow by accelerating existing molecular clouds in the…

Astrophysics of Galaxies · Physics 2017-12-27 Alexander J. Richings , Claude-Andre Faucher-Giguere

In the context of an evolutionary model, the outflow phase of an Active Galactic Nuclei (AGN) occurs at the peak of its activity, once the central SMBH is massive enough to generate sufficient power to counterbalance the potential well of…

We analyse optical datacubes of the inner kiloparsec of 30 local ($z\le0.02$) active galactic nuclei (AGN) hosts that our research group, AGNIFS, has collected over the past decade via observations with the integral field units of the…

We compute the non-thermal emissions produced by relativistic particles accelerated by the AGN-driven shocks in NGC 1068, and we compare the model predictions with the observed gamma-ray and radio spectra . The former is contributed by pion…

High Energy Astrophysical Phenomena · Physics 2016-12-07 A. Lamastra , F. Fiore , D. Guetta , L. A. Antonelli , S. Colafrancesco , N. Menci , S. Puccetti , A. Stamerra , L. Zappacosta

A fundamental gap in the current understanding of galaxies concerns the thermodynamical evolution of the ordinary, baryonic matter. On one hand, radiative emission drastically decreases the thermal energy content of the interstellar plasma…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 M. Gaspari , F. Brighenti , P. Temi

The quasar mode of Active Galactic Nuclei (AGN) in the high-redshift Universe is routinely observed in gas-rich galaxies together with large-scale AGN-driven winds. It is crucial to understand how photons emitted by the central AGN source…

Astrophysics of Galaxies · Physics 2016-09-28 Rebekka Bieri , Yohan Dubois , Joakim Rosdahl , Alexander Y. Wagner , Joseph Silk , Gary A. Mamon

While 2% of active galactic nuclei (AGNs) exhibit narrow emission lines with line-of-sight velocities that are significantly offset from the velocity of the host galaxy's stars, the nature of these velocity offsets is unknown. We…

Astrophysics of Galaxies · Physics 2017-10-04 Julia M. Comerford , R. Scott Barrows , Jenny E. Greene , David Pooley

Ultra-fast outflows (UFOs) are mildly relativistic (outflow velocity $v_{out}>0.1c$) nuclear winds detected as blueshifted absorption lines from highly ionized, dense gas in the X-ray spectra of active galactic nuclei. The AGN feedback…

We study molecular outflows in a sample of 25 nearby (z< 0.17, d<750 Mpc) ULIRG systems (38 individual nuclei) as part of the "Physics of ULIRGs with MUSE and ALMA" (PUMA) survey, using ~400 pc (0.1-1.0" beam FWHM) resolution ALMA CO(2-1)…

The growing evidence for energy-conserving outflows in powerful and luminous AGN supports the idea that high-velocity winds launched from the accretion disc evolve systematically after undergoing a shock with the ambient medium and that…

Astrophysics of Galaxies · Physics 2018-08-06 Anna Lia Longinotti

To accommodate the seemingly "anti-hierarchical" properties of galaxies near the upper end of the mass function within our hierarchical paradigm, current models of galaxy evolution postulate a phase of vigorous AGN feedback at high…

Astrophysics · Physics 2008-10-16 Nicole P. H. Nesvadba , Matt D. Lehnert

E+A galaxies are believed to be a short phase connecting major merger ULIRGs with red and dead elliptical galaxies. Their optical spectrum suggests a massive starburst that was quenched abruptly, and their bulge-dominated morphologies with…

Astrophysics of Galaxies · Physics 2021-12-08 Dalya Baron , Hagai Netzer , Dieter Lutz , J. Xavier Prochaska , Ric I. Davies

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…

One way an Active Galactic Nucleus (AGN) influences the evolution of their host galaxy is by generating a large-scale (kpc-scale) outflow. The content, energetics, and impact of such outflows depend on the properties of both the AGN and…

Astrophysics of Galaxies · Physics 2021-08-11 Aisha Al Yazeedi , Ivan Yu. Katkov , Joseph D. Gelfand , Dominika Wylezalek , Nadia L. Zakamska , Weizhe Liu

There are observational indications that relativistic outflows in AGNs are accelerated over distances that far exceed the scale of the central engine. Examples include the radio galaxy NGC 6251, where knots in the radio jets were inferred…

Astrophysics · Physics 2007-05-23 N. Vlahakis , A. Konigl

Spectral absorption features in active galactic nuclei (AGNs) have traditionally been attributed to outflowing photoionized gas located at a distance of order a parsec from the central continuum source. However, recent observations of QSO…

Astrophysics · Physics 2009-11-07 J. E. Everett , A. Konigl , N. Arav

We present 3D adaptive mesh refinement MHD simulations of an isolated galaxy cluster that include injection of kinetic, thermal, and magnetic energy via a central active galactic nucleus (AGN) in order to study and evaluate the role that…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 P. M. Sutter , H. -Y. Yang , P. M. Ricker , G. Foreman , D. Pugmire

AGN driven outflows are invoked in numerical simulations to reproduce several observed properties of local galaxies. The z > 1 epoch is of particular interest as it was during this time that the volume averaged star formation and the…

Astrophysics of Galaxies · Physics 2016-08-24 D. Kakkad , V. Mainieri , P. Padovani , G. Cresci , B. Husemann , S. Carniani , M. Brusa , A. Lamastra , G. Lanzuisi , E. Piconcelli , M. Schramm