Results 151 to 160 of about 698 (182)
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THE HOST GALAXIES OF 23,000 AGN
Multiwavelength AGN Surveys, 2004We 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.
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The coevolution of the AGNs and their host galaxies
2021Η 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.
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AGN, host galaxies, and starbursts
Proceedings of the International Astronomical Union, 2019AbstractAGN 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 ...
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Two-Dimensional Modeling of AGN Host Galaxies
2001We 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
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AGN and the Characteristics of their Host Galaxies
2013The 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.
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AGN Host Galaxies at Intermediate Redshift
1997We analyse the stellar component of nearby Seyfert host galaxies using population and evolution synthesis methods. We propose to study the host galaxy properties of AGNs as a function of redshift with the ESO VLT.
Wolfram Kollatschny, Alexander Goerdt
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Astronomy and AstrophysicsWe 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 ...
Amalia Corral +2 more
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Host Galaxies of Radio-Loud AGN
1997We 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
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Galaxies Hosting AGN Activity and Their Environments
2010Nuclear 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
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Colors of AGN host galaxies at 0.5
2004We present the results from a study of the host galaxies of 15 optically selected AGNs with 0 ...
Sanchez, S. F. +15 more
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