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Related papers: The complex relationships between AGN, bars and bu…

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Black hole masses are found to correlate with several global properties of their host galaxies, suggesting that black holes and galaxies have an intertwined evolution and that active galactic nuclei (AGN) have a significant impact on galaxy…

Astrophysics of Galaxies · Physics 2018-04-18 Natàlia Porqueres , Jens Jasche , Torsten A. Enßlin , Guilhem Lavaux

The existence of correlations between nuclear properties of galaxies, such as the mass of their central black holes, and larger scale features, like the bulge mass and luminosity, represent a fundamental constraint on galaxy evolution.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 G. La Mura , D. Bindoni , S. Ciroi , V. Cracco , R. D'Abrusco , P. Rafanelli , L. Vaona

Active galactic nuclei (AGN) are powered by accretion disks onto supermassive black holes in the the centers of galaxies. AGN are believed to play important roles in the evolution of both supermassive black holes and their host galaxies…

High Energy Astrophysical Phenomena · Physics 2025-06-11 K. E. Saavik Ford , Barry McKernan

Research over the past decade has shown diminishing empirical evidence for major galaxy mergers being a dominating or even important mechanism for the growth of supermassive black holes in galaxies and the triggering of optically or X-ray…

Astrophysics of Galaxies · Physics 2019-09-25 V. Marian , K. Jahnke , M. Mechtley , S. Cohen , B. Husemann , V. Jones , A. Koekemoer , A. Schulze , A. van der Wel , C. Villforth , R. Windhorst

Active galactic nuclei (AGN) are promising environments for the assembly of merging binary black hole (BBH) systems. Interest in AGNs as nurseries for merging BBH is rising following the detection of gravitational waves from a BBH system…

General Relativity and Quantum Cosmology · Physics 2023-03-06 Avi Vajpeyi , Eric Thrane , Rory Smith , Barry McKernan , K. E. Saavik Ford

Galaxy mergers are likely to play a role in triggering active galactic nuclei (AGN), but the conditions under which this process occurs are poorly understood. In Paper I, we constructed a sample of spatially offset X-ray AGN that represent…

Astrophysics of Galaxies · Physics 2017-04-12 R. Scott Barrows , Julia M. Comerford , Jenny E. Greene , David Pooley

The main requirements for fueling an active galactic nucleus and to form massive black holes are reviewed. Low-luminosity AGN can be fueled easily from the local star clusters, near the nucleus, and the various stellar processes are…

Astrophysics · Physics 2007-05-23 F. Combes

We summarize what large surveys of the contemporary universe have taught us about the physics and phenomenology of the processes that link the formation and evolution of galaxies and their central supermassive black holes. We present a…

Astrophysics of Galaxies · Physics 2015-06-19 Timothy Heckman , Philip Best

Since the 1990s, we have known that there is a super-massive black hole in every galaxy, and that its mass is proportional to the mass of the bulge. To better understand how these black holes were formed, in symbiosis with their galaxies,…

Astrophysics of Galaxies · Physics 2023-02-28 Francoise Combes

For over 60 years, the scientific community has studied actively growing central super-massive black holes (active galactic nuclei -- AGN) but fundamental questions on their genesis remain unanswered. Numerical simulations and theoretical…

We explore properties of barred active spiral galaxies in groups selected from the SDSS-DR7, with the aim of assessing the effects of bars on AGN and the role of the high density environment. We identified barred active galaxies that reside…

Astrophysics of Galaxies · Physics 2015-06-23 Sol Alonso , Georgina Coldwell , Diego García Lambas

We aim to study the effect of environment on the presence and fuelling of Active Galactic Nuclei (AGN) in massive galaxy clusters. We explore the use of different AGN detection techniques with the goal of selecting AGN across a broad range…

Astrophysics of Galaxies · Physics 2015-06-05 Alison J. Klesman , Vicki L. Sarajedini

Dual active galactic nuclei (AGNs) and offset AGNs are kpc-scale separation supermassive black holes pairs created during galaxy mergers, where both or one of the black holes are AGNs, respectively. These dual and offset AGNs are valuable…

We present empirical constraints on the influence of stellar bars on the fueling of active galactic nuclei (AGNs) out to z=0.84 using a sample of X-ray-selected AGNs hosted in luminous non-interacting face-on and moderately inclined disk…

Astrophysics of Galaxies · Physics 2015-06-22 Mauricio Cisternas , Kartik Sheth , Mara Salvato , Johan H. Knapen , Francesca Civano , Paola Santini

Using multiwavelength surveys of active galactic nuclei across a wide range of bolometric luminosities (10^{43}<L_{bol}(erg/s<5x10^{46}) and redshifts (0<z<3), we find a strong, redshift-independent correlation between the AGN luminosity…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 E. Treister , K. Schawinski , C. M. Urry , B. D. Simmons

Through vertical resonances, bars can produce pseudo-bulges, within secular evolution. Bulges and pseudo-bulges have doubled their mass since z=1. The frequency of bulge-less galaxies at z=0 is difficult to explain, especially since clumpy…

Astrophysics of Galaxies · Physics 2020-05-20 Francoise Combes

Aims. The fueling and feedback of Active Galactic Nuclei (AGNs) are important in understanding the co-evolution between black holes and host galaxies. Mergers are thought to have the capability to bring gas inwards and ignite nuclear…

Astrophysics of Galaxies · Physics 2020-05-27 F. Gao , L. Wang , W. J. Pearson , Y. A. Gordon , B. W. Holwerda , A. M. Hopkins , M. J. I. Brown , J. Bland-Hawthorn , M. S. Owers

Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they also feed a central supermassive black hole: by measuring the fractions of…

Recent observations and simulations have revealed the dominance of secular processes over mergers in driving the growth of both supermassive black holes (SMBH) and galaxy evolution. Here we obtain narrowband imaging of AGN powered outflows…

Astrophysics of Galaxies · Physics 2019-09-25 Rebecca Smethurst , Brooke Simmons , Chris Lintott , Jesse Shanahan

[Abriged] Supermassive black holes (SMBH) lurk in the nuclei of most massive galaxies, perhaps in all of them. The tight observed scaling relations between SMBH masses and structural properties of their host spheroids likely indicate that…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Andrea Merloni , Sebastian Heinz