Results 1 to 10 of about 1,056 (210)

Star-forming AGN host galaxies [PDF]

open access: greenNew Astronomy Reviews, 2001
The symbiosis of nuclear activity and star-formation in galaxies, as manifested in their spectral energy distributions (SEDs) is reviewed. Attention is drawn to an Hertzsprung-Russell diagram-equivalent for such objects, as well as to the importance of the SEDs in cosmological context.
Peter Barthel, Peter Barthel
openalex   +5 more sources

The impact of AGN on their host galaxies [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2013
AbstractIn these proceedings I briefly: (1) review the impact (or “feedback”) that active galactic nuclei (AGN) are predicted to have on their host galaxies and larger scale environment, (2) review the observational evidence for or against these predictions and (3) present new results on ionised outflows in AGN.
C. M. Harrison
openalex   +3 more sources

GALAXIES ON DIET: FEEDBACK SIGNATURES IN RADIO-AGN HOST GALAXIES [PDF]

open access: bronzePublications of The Korean Astronomical Society, 2017
There exists strong evidence supporting the co-evolution of central supermassive black holes and their host galaxies; however it is still under debate how such a relation comes about and whether it is relevant for all or only a subset of galaxies. An important mechanism connecting AGN to their host galaxies is AGN feedback, potentially heating up or ...
Marios Karouzos   +21 more
openalex   +3 more sources

The Evolution of AGN and Their Host Galaxies

open access: green, 2016
Active galaxies have been in the forefront of astronomic research since their first discovery, at least 50 years ago (e.g. Schmidt, 1963; Matthews & Sandage, 1963). The putative supermassive black hole (SMBH) at their center characterizes their properties and regulates the evolution of these objects.
E. Kalfountzou
openalex   +3 more sources

A Morphological Study of AGN-host Dwarf Galaxies

open access: yesThe Astrophysical Journal
The study of morphology in galaxies offers a convenient and quantitative method to measure the shapes and characteristics of galaxy light distribution that reflect the evolutionary history.
Jie Tian   +3 more
doaj   +3 more sources

The Interplay between Radio AGN Activity and Their Host Galaxies

open access: goldGalaxies, 2023
Radio activity in AGN (Active Galactic Nuclei) produce feedback on the host galaxy via the impact of the relativistic jets on the circumnuclear gas. Although radio jets can reach up to several times the optical radius of the host galaxy, in this review we focus on the observation of the feedback deposited locally in the central region of the host ...
Guilherme S. Couto   +1 more
openalex   +4 more sources

AGN and the Characteristics of their Host Galaxies

open access: green, 2013
The vast majority of optically identified active galactic nuclei (AGNs) in the local universe reside in host galaxies with prominent bulges, supporting the hypothesis that black hole formation and growth is fundamentally connected to the buildup of galaxy bulges.
William J. McAlpine
openalex   +2 more sources

The incidence of X-ray AGN and non-AGN galaxies in the far-infrared: Insights into host galaxy properties and AGN obscuration

open access: hybridAstronomy & Astrophysics
We investigate the far-infrared (far-IR) incidence of X-ray-selected active galactic nuclei (AGNs) and galaxies that do not host an AGN (non-AGNs) as a function of the stellar mass (M*), star formation rate (SFR), and specific black hole accretion rate (λsBHAR), using data from five well-characterized extragalactic fields (COSMOS, XMM-LSS, Stripe82 ...
G. Mountrichas   +5 more
openalex   +3 more sources

BASS. LIV. Physical Properties of AGN-hosting Galaxy Mergers from Multiwavelength SED Fitting

open access: goldThe Astrophysical Journal
Galaxy mergers are believed to play an important role in triggering rapid supermassive black hole (SMBH) growth. As merging nuclei approach each other, the physical properties of the participating galaxies and the associated SMBH growth are expected to ...
Marco Troncoso   +19 more
doaj   +2 more sources

The smallest AGN host galaxies [PDF]

open access: yesNew Astronomy Reviews, 2006
We describe our efforts to study dwarf galaxies with active nuclei, whose black holes, with masses < 10^6 M_sun, provide the best current observational constraints on the mass distribution of primordial seed black holes. Although these low-mass galaxies do not necessarily contain classical bulges, Barth, Greene, & Ho (2005) show that their ...
Greene, J. E., Barth, A. J., Ho, L. C.
openaire   +2 more sources

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