Results 11 to 20 of about 189,366 (258)
Host Galaxy Morphology and the AGN Unified Model [PDF]
arXiv, 2011 We use a sample of active galaxies from the Cosmic Evolution Survey to show that host galaxy morphology is tied to the accretion rate and X-ray obscuration of its active galactic nucleus (AGN). Unobscured and rapidly accreting broad-line AGNs are more likely to be in spheroid-dominated hosts than weak or obscured AGNs, and obscured AGNs are more likely
Jonathan R. Trump
arxiv +5 more sources
A Census of WISE-selected Dual and Offset AGNs Across the Sky: New Constraints on Merger-driven Triggering of Obscured AGNs [PDF]
The Astrophysical Journal, 2023 Pairs of galaxies hosting active galactic nuclei (AGNs) are powerful probes of merger-driven supermassive black hole (SMBH) growth as they can resolve individual AGNs and trace mergers over a large range of physical separations.
R. Scott Barrows +3 more
doaj +2 more sources
A Morphological Study on Galaxies Hosting Optical Variability-Selected AGNs in the COSMOS Field [PDF]
, 2021 The morphological study is crucial to investigate the connections between active galactic nuclei (AGN) activities and the evolution of galaxies. Substantial studies have found that radiative-mode AGNs primarily reside in disk galaxies, questioning the merger-driven mechanism of AGN activities.
Yuxing Zhong +3 more
arxiv +2 more sources
, 2001 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 features are measured both in the optical and near-infrared.
Boisson, C., Joly, M.
openaire +6 more sources
AGN host galaxy mass function in COSMOS [PDF]
Astronomy & Astrophysics, 2016 15 pages, 10 figures, accepted for publication in A& ...
Mara Salvato +14 more
openaire +8 more sources
The host galaxy/AGN connection [PDF]
Astronomy & Astrophysics, 2007 [ABRIDGED] We recently presented evidence of a connection between the brightness profiles of nearby early-type galaxies and the properties of the AGN they host. The radio loudness of the AGN appears to be univocally related to the host's brightness profile: radio-loud nuclei are only hosted by ``core'' galaxies while radio-quiet AGN are only found in ``
Alessandro Capetti, Barbara Balmaverde
+7 more sources
Typical AGN at intermediate redshifts [PDF]
, 2008 We study the host galaxies and black holes of typical X-ray selected AGN at intermediate redshifts (z~0.5-1.4). The AGN are selected such that their spectral energy distributions are dominated by stellar emission, i.e., they show a prominent 1.6micron ...
Almudena Alonso-Herrero +2 more
core +2 more sources
GALAXIES ON DIET: FEEDBACK SIGNATURES IN RADIO-AGN HOST GALAXIES [PDF]
Publications 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 ...
Karouzos, Marios +21 more
openaire +4 more sources
Clustering, host galaxies, and evolution of AGN
, 2009 We explore the connection between different classes of active galactic nuclei (AGNs) and the evolution of their host galaxies, by deriving host galaxy properties, clustering, and Eddington ratios of AGNs selected in the radio, X-ray, and infrared (IR) wavebands from the wide-field (9 deg^2) Bootes survey.
Hickox, Ryan C. +1 more
openaire +4 more sources
The Role of Active Galactic Nucleus Winds in Galaxy Formation: Connecting AGN Outflows at Low Redshifts to the Formation/Evolution of Their Host Galaxies [PDF]
The Astronomical JournalUsing Sloan Digital Sky Survey (SDSS) spectra, we applied an automatic method to search for outflows (OFs) in three large samples of narrow-line active galactic nuclei (AGN) at low redshifts ( z < 0.4), separated into three spectral activity classes ...
Juan Pablo Torres-Papaqui +4 more
doaj +2 more sources