cosmic microwave background

E290288

cosmological phenomenon electromagnetic radiation relic radiation

The cosmic microwave background is the faint, nearly uniform afterglow radiation permeating the universe, providing a snapshot of the cosmos about 380,000 years after the Big Bang.

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All labels observed (2)

Label	Occurrences
cosmic microwave background canonical	3
CMB	1

Statements (55)

Predicate	Object
instanceOf	cosmological phenomenon ⓘ electromagnetic radiation ⓘ relic radiation ⓘ
ageOfUniverseAtEmission	about 380000 years ⓘ
alternateName	cosmic microwave background ⓘ surface form: CMB cosmic microwave background radiation ⓘ relic radiation ⓘ
angularPowerSpectrumFeature	acoustic peaks ⓘ
anisotropyCharacterizedBy	angular power spectrum ⓘ
contradicts	steady-state cosmology ⓘ surface form: steady state theory
describesEpoch	last scattering surface ⓘ recombination era ⓘ
discoveredBy	Arno Penzias ⓘ Robert Wilson ⓘ
discoveredWithInstrument	Holmdel Horn Antenna ⓘ
discoveryYear	1964 ⓘ
emissionProcess	photon decoupling from baryonic matter ⓘ
encodesInformationAbout	Hubble constant H₀ ⓘ surface form: Hubble constant baryon density ⓘ cosmological parameters ⓘ dark energy density ⓘ dark matter density ⓘ inflationary perturbations ⓘ primordial density fluctuations ⓘ reionization history ⓘ spatial curvature of the universe ⓘ
fills	intergalactic space ⓘ
hasOriginEvent	Big Bang ⓘ
hasPolarization	yes ⓘ
hasProperty	Gaussian temperature fluctuations ⓘ nearly uniform ⓘ statistically isotropic ⓘ
isotropicTo	about one part in 100000 ⓘ
meanTemperature	2.7 K ⓘ 2.725 K ⓘ
measuredBy	Atacama Cosmology Telescope ⓘ QUIJOTE experiment ⓘ surface form: BOOMERanG experiment Cosmic Background Explorer ⓘ surface form: COBE Planck spacecraft ⓘ South Pole Telescope ⓘ WMAP ⓘ
observedFrom	Earth ⓘ space-based observatories ⓘ
peakFrequency	about 160.2 GHz ⓘ
peakWavelength	about 1.9 mm ⓘ
permeates	observable universe ⓘ
polarizationType	B-mode polarization ⓘ E-mode polarization ⓘ
providesEvidenceFor	Big Bang ⓘ surface form: Big Bang theory
radiationType	microwave ⓘ
redshiftAtLastScattering	about 1100 ⓘ
spectrumType	black-body spectrum ⓘ
supportsModel	Lambda-CDM model ⓘ surface form: ΛCDM model
temperatureAnisotropyAmplitude	about 1e-5 ⓘ
temperatureUnit	kelvin ⓘ

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Big Bang → predicts → cosmic microwave background ⓘ

Universe → hasRadiationComponent → cosmic microwave background ⓘ

Rubin–Ford effect → relativeTo → cosmic microwave background ⓘ

cosmic microwave background → alternateName → cosmic microwave background ⓘ

this entity surface form: CMB