Results 51 to 60 of about 698 (182)

Euclid Quick Data Release (Q1)

open access: yesAstronomy & Astrophysics
Active galactic nuclei (AGN) are an important phase in galaxy evolution. However, they can be difficult to identify due to their varied observational signatures.
Margalef-Bentabol B.   +332 more
doaj   +1 more source

Active Dwarf Galaxy Database. II. Connections between Host Galaxy Properties and Black Hole Accretion Signatures

open access: yesThe Astrophysical Journal
We investigate the connection between accretion signatures and host galaxy properties in the context of how active dwarf galaxies are identified. We use the database constructed in E. J. Wasleske & V. F.
Erik J. Wasleske   +2 more
doaj   +1 more source

The Relation between AGN and Host Galaxy Properties in the JWST Era. II. The Merger-driven Evolution of Seyferts at Cosmic Noon

open access: yesThe Astrophysical Journal
In Paper I, we exploited the unsurpassed resolution and depth of JWST/NIRCam imagery to investigate the relationship between active galactic nuclei (AGN) and host-galaxy properties in the JWST era, finding a correlation between the level of spatial ...
Nina Bonaventura   +5 more
doaj   +1 more source

Obscured AGN at z < 1.5: X-Ray to Far-infrared SEDs and Host Galaxy Morphologies in the GOODS Fields

open access: yesThe Astrophysical Journal
We present an analysis of spectral energy distributions (SEDs), galaxy light profiles, and visual morphological classifications for 194 X-ray luminous active galactic nuclei (AGN) (intrinsic absorption-corrected $\mathrm{log}({L}_{{\rm{X}},0.5-7\,{\rm ...
William W.H. Jarvis   +11 more
doaj   +1 more source

The host galaxy/AGN connection in nearby early-type galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2005
Published in A& ...
Capetti, Alessandro, Balmaverde, Barbara
openaire   +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

Black holes in the low-mass galaxy regime

open access: yesAstronomy & Astrophysics
Context. Active galactic nuclei (AGNs) have been observed in dwarf galaxies, yet the impact of black hole feedback in these low-mass systems remains unclear. Aims.
Flores-Freitas R.   +9 more
doaj   +1 more source

Pair-Matching of Radio-Loud and Radio-Quiet AGNs

open access: yesFrontiers in Astronomy and Space Sciences, 2017
Active galactic nuclei (AGNs) are known to cover an extremely broad range of radio luminosities and the spread of their radio-loudness is very large at any value of the Eddington ratio.
Dorota Kozieł-Wierzbowska   +5 more
doaj   +1 more source

UNCOVER: Candidate Red Active Galactic Nuclei at 3 < z < 7 with JWST and ALMA

open access: yesThe Astrophysical Journal
The James Webb Space Telescope (JWST) is revolutionizing our knowledge of z > 5 galaxies and their actively accreting black holes. Using the JWST Cycle 1 Treasury program Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization (UNCOVER)
Ivo Labbe   +31 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

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