Results 171 to 180 of about 1,281,453 (204)

Morphologies of z ∼ 0.7 AGN host galaxies in CANDELS: no trend of merger incidence with AGN luminosity [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
PS would like to acknowledge funding through grant ASI I/005/11/0. DKoo would like to acknowledge funding through grant NSF AST-0808133. SJ acknowledges financial support from the EC through an ERC grant StG-257720.The processes that trigger active ...
Jeyhan S. Kartaltepe   +2 more
exaly   +5 more sources

AGN host galaxies [PDF]

open access: yesNew Astronomy Reviews, 2008
A series of four lectures presented at the 2007 summer school on "Active Galactic Nuclei at the highest angular resolution: theory and observations" held in Torun, Poland.
Sylvain Veilleux
exaly   +3 more sources

THE HOST GALAXIES OF 23,000 AGN

Multiwavelength AGN Surveys, 2004
We examine the relationship between galaxies, supermassive black holes and AGN using a sample of ~ 2 3 , 0 0 0 narrow-emission-line (Type 2) AGN drawn from a sample of ~ 1 2 3 , 0 0 0 galaxies from the Sloan Digital Sky Survey. We have studied how AGN host properties compare to those of normal galaxies and how they depend on the luminosity of the ...
Heckman, T., Kauffmann, G.
openaire   +2 more sources

The mass–metallicity and fundamental metallicity relations in non-AGN and AGN-host galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society
Galaxies' stellar masses, gas-phase oxygen abundances (metallicity), and star formation rates (SFRs) obey a series of empirical correlations, most notably the mass-metallicity relation (MZR) and fundamental metallicity relation (FZR), which relates ...
Zefeng Li, Lisa Kewley, Kathryn Grasha
exaly   +2 more sources

The coevolution of the AGNs and their host galaxies

2021
Η παρούσα διδακτορική διατριβή, πραγματεύεται τη μελέτη της σχέσης του Eνεργού Γαλαξιακού Πυρήνα (AGN) με τον περιβάλλοντα γαλαξία. Μελέτες των τελευταίων δεκαετιών έχουν οδηγήσει στο συμπέρασμα ότι υπάρχει άρρηκτη σχέση ανάμεσα στους γαλαξίες και στις υπερμεγέθεις μελανές οπές (SMBHs) που φιλοξενούν στο κέντρο τους.
openaire   +2 more sources

AGN, host galaxies, and starbursts

Proceedings of the International Astronomical Union, 2019
AbstractAGN by definition live in galaxies. Despite a long history of studies, there is still much ongoing research into the interplay of the nucleus and the host galaxy, how do they affect each other, how is their evolution intertwined. This review will briefly go over the historical developments behind the current understanding of AGN host galaxies ...
openaire   +1 more source

Two-Dimensional Modeling of AGN Host Galaxies

2001
We present a method to model the two-dimensional light distribution of Quasar and Seyfert 1 host galaxies by multi-component fitting. The method has been tested on a large set of simulations, showing its ability to recover total fluxes and morphological properties within the observational errors.
Kuhlbrodt, B.   +2 more
openaire   +2 more sources

AGN and the Characteristics of their Host Galaxies

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.
openaire   +1 more source

Host Galaxies of Radio-Loud AGN

1997
We are studying the host galaxies and cluster environments of a sample of radio-loud AGN. The sample is large enough to compare sub-samples (quasars, FRI and FRII radio galaxies, RBL and XBL). First results show that elliptical host galaxies fall on the μ e — r e relation of bright elliptical galaxies.
Josef W. Fried, Jochen Heidt
openaire   +1 more source

Galaxies Hosting AGN Activity and Their Environments

2010
Nuclear activity in galaxies (AGN) has recently started attracting a broader attention, in one hand, because of the relationship found between the mass of the central spheroidal regions of galaxies and the black holes they host. On the other hand, the output energy provided by AGN (feedback) seems to be crucial for current cosmological simulations to ...
Isabel Márquez, Josefa Masegosa
openaire   +1 more source

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