Results 81 to 90 of about 31,838 (235)

A Radio View of the Sky: the Cosmic History of Star-Forming and AGN Galaxies [PDF]

open access: yes, 2009
We explore the cosmic evolution of radio detected star forming (SF) galaxies and active galactic nuclei (AGN), drawn from the VLA-COSMOS survey, out to z = 1.3.
Schinnerer, E.   +2 more
core  

The first 62 AGN observed with SDSS-IV MaNGA -- III: stellar and gas kinematics [PDF]

open access: yes, 2019
We investigate the effects of Active Galactic Nuclei (AGN) on the gas kinematics of their host galaxies, using MaNGA data for a sample of 62 AGN hosts and 109 control galaxies (inactive galaxies).
Bizyaev, Dmitry   +15 more
core   +2 more sources

Star-forming Nuclear Clusters in Dwarf Galaxies Mimicking Active Galactic Nucleus Signatures in the Mid-infrared

open access: yesThe Astrophysical Journal
Effectively finding and identifying active galactic nuclei (AGNs) in dwarf galaxies is an important step in studying black hole formation and evolution.
Megan R. Sturm   +2 more
doaj   +1 more source

AGN Feedback Signatures in UV Emission

open access: yesGalaxies
Supermassive black holes (SMBH) are believed to influence galaxy evolution through AGN (active galactic nuclei) feedback. Galaxy mergers are key processes of galaxy formation that lead to AGN activity and star formation.
K. Rubinur
doaj   +1 more source

Aromatic Features in AGNs: Star‐forming Infrared Luminosity Function of AGN Host Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2007
We describe observations of aromatic features at 7.7 and 11.3 um in AGN of three types including PG, 2MASS and 3CR objects. The feature has been demonstrated to originate predominantly from star formation. Based on the aromatic-derived star forming luminosity, we find that the far-IR emission of AGN can be dominated by either star formation or nuclear ...
Shi, Yong   +8 more
openaire   +3 more sources

The Astrid Simulation: Evolution of Black Holes and Galaxies to z = 0.5 and Different Evolution Pathways for Galaxy Quenching

open access: yesThe Astrophysical Journal
We present new results from the ASTRID simulation from z = 3 to z = 0.5, covering the epoch of cosmic noon. The galaxy stellar mass function, as well as the black hole mass and luminosity functions in ASTRID , exhibit good agreement with recent ...
Yueying Ni   +7 more
doaj   +1 more source

Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. II. Evidence for Tidally Enhanced Star Formation and Black Hole Accretion

open access: yes, 2011
Active galactic nuclei (AGNs) are occasionally seen in pairs, suggesting that tidal encounters are responsible for the accretion of material by both central supermassive black holes (BHs). In Paper I of this series, we selected a sample of AGN pairs with
Abazajian   +91 more
core   +1 more source

Investigating the Star Formation Rates of Active Galactic Nucleus Hosts Relative to the Star-forming Main Sequence

open access: yesThe Astrophysical Journal
A fundamental question in galaxy and black hole evolution remains how galaxies and their supermassive black holes have evolved together over cosmic time.
Nathan Cristello   +6 more
doaj   +1 more source

The role of AGN and obscuration in the position of the host galaxy relative to the main sequence [PDF]

open access: bronze, 2021
G. Mountrichas   +7 more
openalex   +1 more source

SSDSS IV MaNGA - Properties of AGN host galaxies

open access: yes, 2017
We present here the characterization of the main properties of a sample of 98 AGN host galaxies, both type-II and type-I, in comparison with those of about 2700 non-active galaxies observed by the MaNGA survey. We found that AGN hosts are morphologically early-type or early-spirals.
Sánchez, S.   +24 more
openaire   +3 more sources

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