Results 11 to 20 of about 6,292 (222)
THE NUCLEAR INFRARED EMISSION OF LOW-LUMINOSITY ACTIVE GALACTIC NUCLEI
The Astronomical Journal, 2012 Accepted for publication in ...
Mason, R +11 more
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Are most low-luminosity active galactic nuclei really obscured? [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 At low Eddington ratios (?), two effects make it more difficult to detect certain active galactic nuclei (AGN) given a particular set of selection methods. First, even allowing for fixed accretion physics, at low ?AGN become less luminous relative to their hosts, diluting their emission; the magnitude of the dilution depends on host properties and ...
Hopkins, Philip F. +3 more
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Origin of Radio Emission from Nearby Low‐Luminosity Active Galactic Nuclei [PDF]
The Astrophysical Journal, 2005 25 pages, some references were added, accepted for publication in ...
Wu, Qingwen, Cao, Xinwu
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Gamma-ray observations of low-luminosity active galactic nuclei [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACTThe majority of the activity around nearby (z ≈ 0) supermassive black holes is found in low-luminosity active galactic nuclei (LLAGN), the most of them being classified as low-ionization nuclear emission regions. Although these sources are well studied from radio up to X-rays, they are poorly understood in γ-rays.
Raniere de Menezes +4 more
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EVN observations of low-luminosity flat-spectrum active galactic nuclei [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 We present and discuss the results of very-long baseline interferometry (VLBI, EVN) observations of three low-luminosity (P-5GHz <10(25) W Hz(-1)) broad emission line active galactic nuclei (AGNs) carefully selected from a sample of flat-spectrum radio sources (CLASS). Based on the total and the extended radio power at 5 and at 1.4 GHz respectively,
Caccianiga, A. +3 more
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Evidence of Feedback Effects in Low-luminosity Active Galactic Nuclei Revealed by JWST Spectroscopy
The Astrophysical Journal LettersThis Letter presents an analysis of the infrared (∼3–28 μ m) spectra extracted from the nuclear ( r
Lulu Zhang +19 more
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The Clustering of Low‐Luminosity Active Galactic Nuclei [PDF]
The Astrophysical Journal, 2006 Based on the Sloan Digital Sky Survey (SDSS) DR2 sample, we present a multiparameter analysis of the spatial clustering of nearby active galactic nuclei (AGNs). Estimates of the redshift-space two-point correlation function reveal that Seyferts are less clustered than normal galaxies, while LINERs' clustering amplitude (s0) is consistent with that of ...
Anca Constantin, Michael S. Vogeley
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Broadband Modeling of Low-luminosity Active Galactic Nuclei Detected in Gamma Rays [PDF]
The Astrophysical Journal, 2021 Abstract Low-luminosity active galactic nuclei are more abundant and closer to us than the luminous ones but harder to explore as they are faint. We have selected the four sources, NGC 315, NGC 4261, NGC 1275, and NGC 4486, which have been detected in γ-rays by Fermi-LAT.
Gunjan Tomar +2 more
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LINERs as low-luminosity active galactic nuclei [PDF]
Advances in Space Research, 1999 Many nearby galaxies contain optical signatures of nuclear activity in the form of LINER nuclei. LINERs may be the weakest and most common manifestation of the quasar phenomenon. The physical origin of this class of objects, however, has been ambiguous.
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X-Ray Flares in the Long-term Light Curve of Low-luminosity Active Galactic Nucleus M81*
The Astrophysical Journal, 2023 Most active galactic nuclei at the center of the nearby galaxies have supermassive black holes accreting at sub-Eddington rates through hot accretion flows or radiatively inefficient accretion flows, which efficiently produce jets.
Gunjan Tomar, Nayantara Gupta
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