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gptkbp:instanceOf
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Astronomical object
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gptkbp:abbreviation
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gptkb:AGN
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gptkbp:affects
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Interstellar medium
Star formation
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gptkbp:canBe
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Radio-loud
Radio-quiet
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gptkbp:canOutshine
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Host galaxy
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gptkbp:centralTo
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gptkb:Supermassive_black_hole
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gptkbp:discoveredBy
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gptkb:Carl_Seyfert
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gptkbp:discoveredIn
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1943
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gptkbp:distance
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Can be billions of light-years away
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gptkbp:emits
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gptkb:X-rays
gptkb:Gamma_rays
gptkb:Radio_waves
Electromagnetic radiation
Infrared radiation
Optical light
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gptkbp:firstCataloguedBy
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Seyfert galaxies
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gptkbp:foundIn
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gptkb:Galaxies
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gptkbp:hasComponent
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gptkb:Broad-line_region
gptkb:Narrow-line_region
Accretion disk
Relativistic jet
Torus of dust and gas
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gptkbp:hasFeedback
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AGN feedback
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gptkbp:hasType
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gptkb:Blazar
gptkb:Quasar
gptkb:Radio_galaxy
active galactic nucleus
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gptkbp:hasUnifiedModel
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Orientation-based differences
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gptkbp:hostedBy
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gptkb:Galactic_nucleus
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https://www.w3.org/2000/01/rdf-schema#label
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Active galactic nuclei
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gptkbp:luminosity
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Very high
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gptkbp:observedBy
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gptkb:Very_Large_Array
gptkb:Chandra_X-ray_Observatory
gptkb:Hubble_Space_Telescope
gptkb:Fermi_Gamma-ray_Space_Telescope
All wavelengths
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gptkbp:powerSource
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Gravitational energy
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gptkbp:produces
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Jets
Outflows
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gptkbp:provides
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Accretion of matter onto supermassive black hole
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gptkbp:range
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10^6 to 10^10 solar masses (black hole)
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gptkbp:redshift
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High
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gptkbp:studiedBy
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Cosmology
Galaxy evolution
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gptkbp:studiedIn
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Extragalactic astronomy
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gptkbp:triggeredBy
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Starburst activity
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gptkbp:variant
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Luminosity varies over time
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gptkbp:bfsParent
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gptkb:Supermassive_Black_Hole
gptkb:Quasi-Stellar_Object
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gptkbp:bfsLayer
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6
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