Results 1 to 10 of about 56,717 (274)
Investigation of Stellar Kinematics and Ionized Gas Outflows in Local (U)LIRGs
The Astrophysical Journal, 2023 We explore the properties of stellar kinematics and ionized gas in a sample of 1106 local (U)LIRGs from the AKARI telescope. We combine data from Wide-field Infrared Survey Explorer and Sloan Digital Sky Survey Data Release 13 to fit the spectral energy ...
Ashraf Ayubinia +6 more
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The Radius–Luminosity Relationship Depends on Optical Spectra in Active Galactic Nuclei [PDF]
Astrophysical Journal, 2019 The radius–luminosity ( ) relationship of active galactic nuclei (AGNs) established by the reverberation mapping (RM) observations has been widely used as a single-epoch black hole mass estimator in the research of large AGN samples.
P. Du, Jian-Min Wang
semanticscholar +1 more source
JETTED ACTIVE GALACTIC NUCLEI [PDF]
International Journal of Modern Physics: Conference Series, 2012 Most of the electromagnetic output of blazars (BL Lac objects and Flat Spectrum Radio Quasars) comes out in the γ–ray band, making the Large Area Telescope [0.1–100 GeV] onboard the Fermi satellite and the Cherenkov telescopes crucial for gather crucial data and thus to understand their physics.
openaire +2 more sources
Hierarchical Black Hole Mergers in Active Galactic Nuclei. [PDF]
Physical Review Letters, 2019 The origins of the stellar-mass black hole mergers discovered by LIGO/Virgo are still unknown. Here we show that if migration traps develop in the accretion disks of active galactic nuclei (AGNs) and promote the mergers of their captive black holes, the ...
Yang Yang +10 more
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NuSTAR Observations of a Heavily X-Ray-obscured AGN in the Dwarf Galaxy J144013+024744
The Astrophysical Journal, 2023 We present a multiwavelength analysis of the dwarf Seyfert 2 galaxy J144013+024744, a candidate obscured active galactic nucleus (AGN) thought to be powered by an intermediate-mass black hole (IMBH, M _• ≈ 10 ^4 −10 ^6 M _⊙ ) of mass M _• ∼ 10 ^5.2 M _⊙ .
Shrey Ansh +12 more
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Bolometric correction factors for active galactic nuclei [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The bolometric luminosity of active galactic nuclei (AGNs) is difficult to determine, and various approximations have been used to calibrate it against different observed properties.
H. Netzer
semanticscholar +1 more source
Possible mechanism for multiple changing-look phenomena in active galactic nuclei [PDF]
Astronomy & Astrophysics, 2020 Context. The changing-look phenomenon observed in a growing number of active galaxies challenges our understanding of the accretion process close to a black hole. Aims.
M. Śniegowska +3 more
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VARIABILITY OF ACTIVE GALACTIC NUCLEI [PDF]
, 2001 Continuum and emission-line variability of active galactic nuclei provides a powerful probe of microarcsecond scale structures in the central regions of these sources. In this contribution, we review basic concepts and methodologies used in analyzing AGN variability.
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THE EVOLUTION OF ACTIVE GALACTIC NUCLEI AND THEIR SPINS [PDF]
The Astrophysical Journal, 2013 ApJ, in ...
Volonteri, M. +3 more
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The Astrophysical Journal, 2023 To understand the formation and growth of supermassive black holes (SMBHs) and their coevolution with host galaxies, it is essential to know the impact of environment on the activity of active galactic nuclei (AGNs).
Zhensong Hu +16 more
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