Eridanus Supervoid
E540385
Eridanus Supervoid is an unusually large and sparse region of space with significantly fewer galaxies than average, often studied in connection with anomalies in the cosmic microwave background.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical structure
ⓘ
cosmic void ⓘ |
| comparedTo | typical cosmic voids ⓘ |
| discoveredUsing |
galaxy surveys
ⓘ
optical surveys ⓘ radio observations ⓘ |
| hasAlternativeName | Eridanus Void NERFINISHED ⓘ |
| hasApproximateDiameter | hundreds of megaparsecs ⓘ |
| hasApproximateRedshift | z ≈ 0.2 ⓘ |
| hasContext |
cosmic variance studies
ⓘ
large-angle anomalies in the CMB ⓘ search for non-standard cosmology ⓘ |
| hasProperty |
associated with CMB anomalies
ⓘ
candidate explanation for CMB Cold Spot ⓘ extended along line of sight ⓘ low galaxy density compared to cosmic mean ⓘ possibly one of the largest known voids ⓘ significantly fewer galaxies than average ⓘ sparse distribution of galaxies ⓘ statistical significance under discussion in literature ⓘ three-dimensional underdensity ⓘ underdense region of the universe ⓘ unusually large ⓘ |
| hasSignificance |
challenges standard cosmological model if anomaly confirmed
ⓘ
constrains cosmological parameters ⓘ tests Gaussianity of CMB fluctuations ⓘ tests isotropy of the universe ⓘ |
| hasUncertainty |
exact size is debated
ⓘ
role in producing CMB Cold Spot is debated ⓘ |
| inferredFrom |
CMB temperature maps
ⓘ
galaxy number counts ⓘ photometric redshift surveys ⓘ |
| locatedIn |
constellation Eridanus
ⓘ
southern celestial hemisphere ⓘ |
| observedBy |
Planck spacecraft
NERFINISHED
ⓘ
WMAP NERFINISHED ⓘ |
| partOf | large-scale structure of the universe ⓘ |
| possibleCauseOf | part of observed CMB Cold Spot temperature decrement ⓘ |
| relatedTo |
CMB Cold Spot
NERFINISHED
ⓘ
cosmic microwave background NERFINISHED ⓘ dark energy NERFINISHED ⓘ integrated Sachs–Wolfe effect NERFINISHED ⓘ ΛCDM model NERFINISHED ⓘ |
| studiedInField |
cosmology
ⓘ
large-scale structure of the universe ⓘ observational cosmology ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.