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gptkbp:instanceOf
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Astronomical object
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gptkbp:abbreviation
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gptkb:QSO
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gptkbp:alternativeName
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gptkb:QSO
gptkb:Quasi-stellar_object
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gptkbp:cataloguedIn
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gptkb:Sloan_Digital_Sky_Survey
gptkb:Véron-Cetty_&_Véron_quasar_catalogue
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gptkbp:discoveredBy
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gptkb:Maarten_Schmidt
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gptkbp:discoveredIn
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1963
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gptkbp:distanceFromEarth
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Billions of light-years
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gptkbp:emits
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gptkb:X-rays
gptkb:Gamma_rays
gptkb:Radio_waves
Electromagnetic radiation
Visible light
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gptkbp:etymology
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gptkb:Quasi-stellar_radio_source
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gptkbp:firstIdentifiedAs
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gptkb:Quasi-stellar_radio_source
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gptkbp:foundIn
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Distant galaxies
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gptkbp:hasHostGalaxy
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Massive galaxy
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gptkbp:hasJet
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Relativistic jets
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gptkbp:hasMagnitude
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Apparent magnitude up to -26
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gptkbp:hasNumberKnown
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Over 750,000 (as of 2023)
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gptkbp:hasPeakEpoch
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Redshift z~2-3
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gptkbp:hasType
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Broad absorption line quasar
Obscured quasar
Radio-loud quasar
Radio-quiet quasar
Red quasar
Type 1 quasar
Type 2 quasar
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gptkbp:hasVariability
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Brightness changes
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gptkbp:hostedBy
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Elliptical galaxies
Merging galaxies
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https://www.w3.org/2000/01/rdf-schema#label
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Quasar
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gptkbp:lifespan
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10 million to 1 billion years
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gptkbp:luminosity
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Extremely high
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gptkbp:mass
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Millions to billions solar masses (black hole)
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gptkbp:notableExample
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gptkb:3C_273
gptkb:3C_48
gptkb:APM_08279+5255
gptkb:ULAS_J1342+0928
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gptkbp:observedBy
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gptkb:Optical_telescopes
gptkb:Radio_telescopes
gptkb:Space_telescopes
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gptkbp:powerSource
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Accretion disk
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gptkbp:provides
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gptkb:Supermassive_black_hole
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gptkbp:redshift
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High
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gptkbp:spectrumOfActivity
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Broad emission lines
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gptkbp:studiedIn
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Cosmology
Astrophysics
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gptkbp:subclassOf
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active galactic nucleus
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gptkbp:usedFor
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Measuring universe expansion
Probing early universe
Studying intergalactic medium
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gptkbp:bfsParent
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gptkb:MIT_License
gptkb:George_Pérez
gptkb:VHS
gptkb:Wendell_Vaughn_(Quasar)
gptkb:Wundarr_the_Aquarian
gptkb:O_Boticário
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gptkbp:bfsLayer
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5
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