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The 58 pages that link to Baryon acoustic oscillations, each with the reason it gives.

• Cosmic microwave backgroundRelated: The same early sound waves shaped background patterns and later galaxy clustering.

• Dark matterRelated: Their measured pattern tests cosmological models that include dark matter.

• RedshiftRelated: Galaxy redshifts locate this scale in three dimensions, making it a probe of cosmic expansion.

• Dark energyRelated: This standard ruler measures expansion across cosmic time.

• Big Bang nucleosynthesisRelated: Their measurements provide an independent estimate of the baryon density compared with nucleosynthesis.

• Cosmological constantRelated: Their observed distances trace expansion history and constrain the constant.

• Cosmological principleRelated: Their statistical distribution tests cosmic structure against homogeneous expansion models.

• Hubble constantRelated: Their calibrated distance scale helps constrain expansion across cosmic history.

• Lambda-CDM modelRelated: Their measured scale traces the expansion history and tests the model’s geometry.

• Cosmic webRelated: Their imprint offers a measurable scale in the later galaxy distribution.

• Cosmological redshiftRelated: Redshift-space galaxy maps reveal this scale and constrain expansion history.

• Hubble tensionRelated: They test expansion history and the sound-horizon calibration beyond the cosmic microwave background.

• Hubble's lawRelated: Its measured cosmic scale constrains expansion through distance–redshift observations.

• Large-scale structure of the universeRelated: Their scale provides a standard ruler for mapping the web's expansion history.

• Weak gravitational lensingRelated: Lensing surveys use this cosmic structure alongside shear to constrain expansion history.

• Galaxy redshift surveyRelated: The scale in galaxy clustering acts as a standard ruler for cosmic distances.

• Sloan Digital Sky SurveyRelated: SDSS galaxy clustering measurements used this standard ruler to constrain cosmic expansion.

• Planck satelliteRelated: Combined with Planck data, these patterns help constrain cosmic expansion and dark energy.

• Intergalactic mediumRelated: Gas in the medium follows the matter distribution used to measure this cosmic scale.

• Recombination (cosmology)Related: The end of photon coupling froze these plasma sound waves into later matter patterns.

• Scale factorRelated: Its apparent size across epochs helps measure the expansion history encoded by the scale factor.

• Cold dark matterRelated: Their measured pattern provides a comparison for cold dark matter’s predicted structure growth.

• Comoving distanceRelated: Its measured scale constrains distances across cosmic time.

• Lyman-alpha forestRelated: Large quasar surveys use correlations in forest absorption to measure this scale.

• Cosmic voidRelated: Void distributions preserve a measurable imprint of this cosmic scale.

• Redshift-space distortionsRelated: Analyses model velocity distortions alongside this standard-ruler signal.

• Baryonic matterRelated: Their present-day scale traces the early interaction of baryons and radiation.

• Hubble parameterRelated: Its measured size at different redshifts constrains the expansion rate.

• Accelerating expansion of the universeRelated: This independent distance marker maps expansion across cosmic time.

• Cosmic microwave background anisotropyRelated: Their compression and rarefaction peaks shape the angular temperature power spectrum.

• Sloan Great WallRelated: Their statistical scale provides a distinct feature against which large galaxy distributions are studied.

• Euclid (space telescope)Related: Euclid measures this scale to trace cosmic expansion and constrain dark energy.

• Galaxy filamentRelated: Their statistical imprint can be measured in galaxy distributions tracing the web.

• Wilkinson Microwave Anisotropy ProbeRelated: WMAP calibrated this early-universe scale later used to measure cosmic expansion.

• Big RipRelated: Their distance measurements help constrain dark energy across cosmic time.

• Cosmological parametersRelated: Its measured distance scale constrains expansion parameters across cosmic time.

• Dark Energy SurveyRelated: DES galaxy clustering measured this standard ruler across cosmic time.

• High-Z Supernova Search TeamRelated: This independent distance probe checks the expansion history measured with supernovae.

• Horizon problemRelated: They provide an independent record of conditions in the same early cosmic plasma.

• Physical cosmologyRelated: This standard ruler measures how cosmic distances and expansion changed over time.

• Structure formationRelated: Their imprint in galaxy clustering traces cosmic expansion and the growth of structure.

• Expansion of the UniverseRelated: This standard ruler tracks how cosmic distances changed across different eras.

• Observational cosmologyRelated: Their measured scale serves as a ruler for the universe’s expansion history.

• Photon epochRelated: Photon pressure helped drive these waves before photons decoupled from matter.

• Tired lightRelated: Their measured distance scale fits an evolving expanding cosmos, not a simple static tired-light picture.

• Galaxy groups and clustersRelated: Cluster surveys can trace cosmic structure and constrain the expansion history.

• Giant VoidRelated: Void and galaxy distributions can both trace this standard ruler.

• Jim PeeblesRelated: They preserve a trace of the same early-universe physics used to interpret cosmic structure.

• Local HoleRelated: They offer a large-scale distance ruler for testing whether local density estimates fit cosmic structure.

• Recessional velocityRelated: Their measured scale constrains cosmic distances and the expansion history.