Linked from

The 40 pages that link to Cosmological redshift, each with the reason it gives.

• Cosmic microwave backgroundRelated: Expansion stretched the radiation from visible and infrared wavelengths into microwaves.

• Conservation of energyRelated: It raises questions about assigning globally conserved energy to radiation in an expanding universe.

• RedshiftBroader topic: It explains redshift accumulated across expanding space, even without ordinary motion through space.

• Doppler effectCompared with: It can resemble a Doppler shift but arises from expanding space.

• Lambda-CDM modelRelated: Redshift links observations of distant objects to the model’s expansion history.

• Friedmann equationsRelated: The scale-factor history links observed redshift to cosmic expansion.

• Astronomical spectroscopyRelated: Spectral lines shifted to longer wavelengths help measure cosmic expansion and distance.

• Peculiar velocityRelated: Its signal combines with Doppler shifts caused by peculiar motion.

• Observable universeRelated: It reveals how expansion changes signals received from distant parts of the observable universe.

• Hubble's lawRelated: Redshift provides the main observable used to estimate distant galaxies’ recession velocities.

• Gravitational redshiftCompared with: It also reddens light, but arises from cosmic expansion rather than a local gravitational potential difference.

• Radial velocityCompared with: It shifts spectra without representing ordinary motion through space along the line of sight.

• Galaxy redshift surveyBroader topic: It supplies the dominant distance signal for most galaxies in cosmological surveys.

• Friedmann–Lemaître–Robertson–Walker metricRelated: The metric links wavelength stretching directly to the change in scale factor.

• Scale factorRelated: A photon’s wavelength stretches in proportion to the scale factor’s growth.

• Light-yearRelated: For remote galaxies, expansion means a light-year distance alone does not capture the full cosmological history.

• Luminosity distanceRelated: Redshift alters photon energy and arrival rate, effects included in luminosity distance.

• Lyman-alpha forestRelated: Different redshifts place intervening clouds’ Lyman-alpha absorption at different observed wavelengths.

• Cosmic star-formation historyRelated: Redshift links observed galaxy samples to the epochs plotted in the history.

• Doppler spectroscopyCompared with: It also shifts spectral lines, but its interpretation is expansion rather than local source motion.

• Redshift-space distortionsRelated: It supplies the expansion signal that peculiar velocities perturb.

• Cosmic infrared backgroundRelated: Expansion shifts galaxies’ emitted infrared spectra before they contribute to the observed background.

• Hubble parameterRelated: Redshift records changes in the scale factor and helps infer expansion history.

• Hubble flowRelated: Its measured wavelength shift provides evidence for the recession of distant galaxies.

• Sloan Great WallRelated: Its redshift range helps locate the wall along the line of sight.

• Cosmic flowRelated: It provides the redshift signal from which expansion and line-of-sight motion are inferred.

• Geoffrey BurbidgeRelated: Its physical interpretation separates expanding-universe models from alternatives Burbidge supported.

• Lookback timeRelated: Redshift helps infer how long light has traveled through the expanding universe.

• Brian SchmidtRelated: Redshifts supplied the recession information paired with supernova distance estimates.

• Dark Energy SurveyNarrower topic: DES redshifts linked observed galaxies to cosmic distance and time.

• Horizon problemRelated: It connects the microwave background’s present wavelength to conditions in the early universe.

• Relativistic Doppler effectCompared with: It can resemble a velocity redshift but arises from expanding spacetime, not merely local relative motion.

• Static universeRelated: Expansion explains widespread galaxy redshifts without requiring a static cosmos.

• BOSS Great WallRelated: Redshifts let survey astronomers estimate the distances and three-dimensional positions of its galaxies.

• Chronology of the universeRelated: Redshift links astronomical observations to the expansion and lookback time of cosmic events.

• Expansion of the UniverseRelated: Its measured value reveals how much the universe expanded while the light traveled.

• Tired lightRelated: Tired-light hypotheses aim to explain this redshift without expanding space.

• Comoving and proper distancesRelated: Its scale-factor relation links observed light to the cosmic time when it was emitted.

• Formation and evolution of stars and galaxiesRelated: It lets astronomers relate observed galaxy light to cosmic distance and epoch.

• Recessional velocityRelated: Its wavelength shift is a primary way to infer distant objects’ recession.