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Related papers: Bars in Starbursts and AGNs -- A Quantitative Reex…

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The relationship of an AGN to its host galaxy is a crucial question in the study of galaxy evolution. We perform stellar population synthesis in the central regions of galaxies of different activity levels. A large number of stellar…

Astrophysics · Physics 2007-05-23 C. Boisson , M. Joly

In the absence of an interaction, central bars might be the most effective mechanism for radial motions of gas in barred spiral galaxies, which represent two-thirds of disc galaxies. The dynamical effects induced by bars in the first few…

Astrophysics of Galaxies · Physics 2013-12-20 O. Cavichia , M. Mollá , R. D. D. Costa , W. J. Maciel

We map the co-eval growth of galaxies and their central supermassive black holes in detail by measuring the incidence of Active Galactic Nuclei (AGN) in galaxies as a function of star formation rate (SFR) and redshift (to z~4). We combine…

Astrophysics of Galaxies · Physics 2019-02-20 James Aird , Alison L. Coil , Antonis Georgakakis

In modern models and simulations of galactic evolution, the star formation in massive galaxies is regulated by an ad hoc active galactic nuclei (AGN) feedback process. However, the physics and the extension of such effects on the star…

[Abridged] Active Galactic Nuclei (AGN) are thought to be responsible for the suppression of star formation in massive ~10$^{10}$ M$_\odot$ galaxies. While this process is a key feature in numerical simulations, it is not yet unambiguously…

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

We present an observational study of the effect of bars on the gas component and on the star formation properties of their host galaxies in a statistically significant sample of resolved objects, the $Herschel$ Reference Sample. The…

Astrophysics of Galaxies · Physics 2017-02-15 Guido Consolandi , Massimo Dotti , Alessandro Boselli , Giuseppe Gavazzi , Fabio Gargiulo

We study the atomic gas content and the central stellar mass concentration for a sample of almost 1500 nearby galaxies to investigate the nature of starbursts and the influence of galaxy-galaxy interactions on star formation (SF). We used a…

Astrophysics of Galaxies · Physics 2020-04-08 Simón Díaz-García , Johan H. Knapen

It is widely believed that ultraluminous infrared (IR) galaxies and active galactic nuclei (AGN) activity are triggered by galaxy interactions and merging, with the peak of activity occurring at z~2, where submillimetre galaxies are…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Kristen Coppin , Alexandra Pope , Karin Menendez-Delmestre , David M. Alexander , James Dunlop

We explore how the physical properties of disc galaxies relate to the presence of bars using data from the SDSS-IV MaNGA survey. By combining internal kinematical properties and environmental diagnostics, we find that barred galaxies are…

Astrophysics of Galaxies · Physics 2025-12-25 Erik Aquino-Ortíz , Bernardo Cervantes-Sodi , Karol Chim-Ramirez

Nuclear stellar clusters are a common phenomenon in spirals and in starbursts galaxies, and they may be a natural consequence of the star formation processes in the central regions of galaxies. HST UV imaging of a few Seyfert 2 galaxies…

Astrophysics · Physics 2015-05-13 R. M. González Delgado , V. Muñoz Marin , E. Pérez , H. Schmitt , R. Cid Fernandes

Stellar bars are important for the secular evolution of disk galaxies because they can drive gas into the galactic central regions. To investigate the star formation properties in barred galaxies, we presented a multi-wavelength study of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Zhi-Min Zhou , Chen Cao , Hong Wu

Galactic bars can affect the evolution of galaxies by redistributing gas in galaxies, possibly contributing to the cessation of star formation. Recent works point to 'bar quenching' playing an important role in massive disk galaxies like…

Astrophysics of Galaxies · Physics 2020-01-22 Lucy Newnham , Kelley Hess , Karen Masters , Sandor Kruk , Samanta Penny , Tim Lingard , Rebecca Smethurst

While AGN are considered to be key drivers of the evolution of massive galaxies, their potentially significant role in the dwarf-galaxy regime (M*< 10^9 MSun) remains largely unexplored. We combine optical and infrared data, from the Hyper…

Astrophysics of Galaxies · Physics 2019-09-18 Sugata Kaviraj , Garreth Martin , Joseph Silk

New observations in favour of a significant role of secular evolution are reviewed: central star formation boosted in pseudo-bulge barred galaxies, relations between bulge and disk, evidence for rejuvenated bulges. Numerical simulations…

Astrophysics · Physics 2015-06-24 F. Combes

It has been argued that supermassive black holes (BHs) coevolve with the central parts of galaxies, as a result of the common fuel for both the BH and star formation in the galaxy central region, as supported by the particularly significant…

Astrophysics of Galaxies · Physics 2026-05-22 Q. Ni , K. Nandra , A. Merloni , J. Comparat , D. Tubín-Arenas , Y. Zhang

Galaxy mergers are key events in galaxy evolution, often causing massive starbursts and fueling active galactic nuclei (AGN). In these highly dynamic systems, it is not yet precisely known how much starbursts and AGN respectively contribute…

(Abridged) We present a detailed study of the relation between circumnuclear dust morphology, host galaxy properties, and nuclear activity in nearby galaxies. We use our sample of 123 nearby galaxies with visible--near-infrared colormaps…

Astrophysics · Physics 2009-11-07 Paul Martini , Michael W. Regan , John S. Mulchaey , Richard W. Pogge

Bars are an elongated structure that extends from the centre of galaxies, and about one-third of disk galaxies are known to possess bars. These bars are thought to form either through a physical process inherent in galaxies, or through an…

Astrophysics of Galaxies · Physics 2019-06-26 Yongmin Yoon , Myungshin Im , Gwang-Ho Lee , Seong-Kook Lee , Gu Lim

Bars inhabit the majority of local-Universe disk galaxies and may be important drivers of galaxy evolution through the redistribution of gas and angular momentum within disks. We investigate the star formation and gas properties of bars in…

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