Results 111 to 120 of about 762 (139)
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Active Galactic Nuclei

1987
Well before the discovery of quasars, a special class of galaxies was known to harbor unusually powerful nuclei (Seyfert, 1943). Two primary defining characteristics of these active galactic nuclei (AGNs) are an intense point-like nuclear continuum source and strong, broad emission lines, neither of which could arise from ordinary stellar processes ...
Matthew A. Malkan   +2 more
openaire   +1 more source

Activity in galactic nuclei

2008
These lectures review briefly the spectra and classification of active galactic nuclei (AGN), including quasi-stellar objects (QSOs), and the properties of their ‘host’ galaxies; starbursts (SB) and the possible association between galaxy interactions, SB, and AGN.
openaire   +1 more source

Jet-Induced Feedback in the [O III] Lines of Early Evolution Stage Active Galactic Nuclei

Universe, 2021
Emilia Järvelä   +2 more
exaly  

Relativistic Jets from Active Galactic Nuclei

Annual Review of Astronomy and Astrophysics, 2019
Roger Blandford
exaly  

Possible Wormhole Candidates in Active Galactic Nuclei

Universe, 2020
Mikhail Piotrovich   +2 more
exaly  

The Origin of Matter at the Base of Relativistic Jets in Active Galactic Nuclei

Universe, 2020
Eduardo Mario Gutierrez   +2 more
exaly  

Hierarchical Black Hole Mergers in Active Galactic Nuclei

Physical Review Letters, 2019
Imre Bartos   +2 more
exaly  

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