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相关论文: On the Fraction of Quasars with Outflows

200 篇论文

Determining the distance of quasar absorption outflows from the central source (R) and their kinetic luminosity are crucial for understanding their contribution to active galactic nucleus (AGN) feedback. Here we summarize the results for a…

星系天体物理 · 物理学 2020-10-07 Timothy R. Miller , Nahum Arav , Xinfeng Xu , Gerard A. Kriss

Galactic-wide outflows driven by active galactic nuclei (AGNs) is a routinely invoked feedback mechanism in galaxy evolution models. Hitherto, the interplay among the interstellar gas on galactic scales, the propagation of AGN outflows and…

The various ionization mechanisms at play in active galactic nuclei (AGN) and quasars have been well studied, but relatively little has been done to separately investigate the contributions of these ionization mechanisms within the host…

星系天体物理 · 物理学 2019-08-14 Jason T. Hinkle , Sylvain Veilleux , David S. N. Rupke

Outflows from active galactic nuclei (AGN) are one of the fundamental mechanisms by which the central supermassive black hole interacts with its host galaxy. Detected in $\ge 50\%$ of nearby AGN, these outflows have been found to carry…

Feedback from active galactic nuclei (AGN) on their host galaxies, in the form of gas outflows capable of quenching star formation, is considered a major player in galaxy evolution. However, clear observational evidence of such major impact…

星系天体物理 · 物理学 2021-04-07 Giacomo Venturi , Alessandro Marconi

Some cosmological hydrodynamical simulations predict that outflows driven by active galactic nuclei (AGN) play a key role in powering the Ly$\alpha$ nebulae observed around high-redshift quasars. In such simulations, AGN feedback seeded as…

Although now routinely incorporated into hydrodynamic simulations of galaxy evolution, the true importance of the feedback effect of the outflows driven by active galactic nuclei (AGN) remains uncertain from an observational perspective.…

Galaxy-wide outflows driven by active galactic nuclei (AGN) are an important ingredient in galaxy evolution. Analytical calculations suggest that such outflows have significant inertia and can persist long after the AGN itself fades away.…

星系天体物理 · 物理学 2023-06-14 Kastytis Zubovas , Gediminas Maskeliūnas

Different mechanisms can drive outflows in active galactic nuclei (AGN), but it is often unclear which mechanism dominates, if any. To quantify the impact of AGN feedback on galaxy evolution, the driving mechanism of outflows must be better…

星系天体物理 · 物理学 2018-03-01 Dominika Wylezalek , Raffaella Morganti

Negative feedback from active galactic nuclei (AGN) is considered a key mechanism in shaping galaxy evolution. Fast, extended outflows are frequently detected in the AGN host galaxies at all redshifts and luminosities, both in ionised and…

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…

星系天体物理 · 物理学 2016-09-28 Rebekka Bieri , Yohan Dubois , Joakim Rosdahl , Alexander Y. Wagner , Joseph Silk , Gary A. Mamon

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

Outflows have been shown to be prevalent in galaxies hosting luminous active galactic nuclei (AGNs) and present a physically plausible way to couple the AGN energy output with the interstellar medium of their hosts. Despite their…

星系天体物理 · 物理学 2016-12-21 Marios Karouzos , Jong-Hak Woo , Hyun-Jin Bae

Absorption outflows in quasars play an important role in understanding active galactic nuclei (AGN) feedback and their influence on galaxy evolution. The unprecedented spectral data provided by the Dark Energy Spectroscopic Instrument…

星系天体物理 · 物理学 2025-06-02 Maryam Dehghanian , Nahum Arav , Mayank Sharma , Gwen Walker , Kyle Johnston , Matthew Kaupin , Justin Gandhi

We study the properties of massive, galactic-scale outflows of molecular gas and investigate their impact on galaxy evolution. We present new IRAM PdBI CO(1-0) observations of local ULIRGs and QSO hosts: clear signature of massive and…

Active galactic nucleus (AGN) driven outflows can have a significant impact on the evolution of the host galaxy. In this work, we compare the properties of galaxies that hosts AGNs with and without outflows. Our sample consists of 103 AGNs…

星系天体物理 · 物理学 2024-03-06 Gabriel A. Oio , Y. Sophia Dai , C. G. Bornancini , Zi-Jian Li

Observations and simulations show that outflows in active galactic nuclei (AGN) contain gas in different phases. To understand their true impact on galaxy evolution, we advocate consistent and unbiased investigation of these multiphase…

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…

星系天体物理 · 物理学 2017-12-27 Alexander J. Richings , Claude-Andre Faucher-Giguere

The properties of large-scale galactic outflows, such as their kinetic energy and momentum rates, correlate with the luminosity of the active galactic nucleus (AGN). This is well explained by the wind-driven outflow model, where a fraction…

星系天体物理 · 物理学 2020-09-30 Kastytis Zubovas , Emanuele Nardini

Galactic outflows are now commonly observed in starburst and active galactic nuclei (AGN) host galaxies. Yet, there is no clear consensus on their physical driving mechanism(s). We have previously shown that AGN radiative feedback, driven…

星系天体物理 · 物理学 2018-10-17 W. Ishibashi , A. C. Fabian
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