About: Active galactic nucleus

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About: Active galactic nucleus Goto Sponge NotDistinct Permalink

An Entity of Type : owl:Thing, within Data Space : prod-dbpedia.inria.fr associated with source document(s)

Attributes	Values
rdfs:subClassOf	galaxy
rdfs:label	Galaxie active (fr) Active galactic nucleus (en) Aktiewe sterrestelsel (af) Aktiv galaxkärna (sv) Aktiver Galaxienkern (de) Galaktyka aktywna (pl) Galassia attiva (it) Galaxia activa (es) Galaxia activa (oc) Galàxia activa (ca) نواة مجرية نشطة (ar) 活動銀河 (ja)
rdfs:comment	En astronomie, une galaxie active est une galaxie abritant un noyau actif (plus précisément noyau actif de galaxie, en abrégé NAG, ou AGN d'après le vocable anglais Active Galactic Nucleus). Ce noyau est une région compacte localisée au centre de la galaxie et dont la luminosité est beaucoup plus intense que la normale dans au moins quelque domaine du spectre électromagnétique (ondes radio, infrarouge, lumière visible, ultraviolet, rayons X, et/ou rayons gamma), avec des caractéristiques qui montrent que cette forte luminosité n'est pas d'origine stellaire. Le rayonnement du NAG résulterait théoriquement de l'accrétion par un trou noir supermassif situé au centre de la galaxie-hôte. Les NAG sont les sources continues de rayonnement électromagnétique les plus lumineuses de l'univers, et com (fr)
rdfs:seeAlso	https://snl.no/aktiv_galakse http://www.enciclopedia.cat/EC-GEC-0247114.xml https://commons.wikimedia.org/wiki/Category:Active_galactic_nuclei https://www.britannica.com/topic/active-galactic-nucleus https://www.jstor.org/topic/active-galaxies https://bigenc.ru/text/4024421 https://www.quora.com/topic/Active-Galactic-Nuclei https://www.quora.com/topic/Active-Galactic-Nuclei-AGNs
sameAs	Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus Active galactic nucleus
Wikipage page ID	24403 (xsd:integer)
Wikipage revision ID	190401774 (xsd:integer)
dbo:wikiPageWikiLink	Accretion (astrophysics) Advection dbpedia-fr:Anglais Astronomy dbpedia-fr:Big_Bang Blazar Galactic bulge category-fr:Galaxie_active category-fr:Source_X category-fr:Source_gamma category-fr:Source_radio Cosmology dbpedia-fr:Cygnus_A Compton scattering dbpedia-fr:Dispersion_des_vitesses dbpedia-fr:Disque_d'accrétion dbpedia-fr:Décalage_vers_le_rouge

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