Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
E934860
"Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant" is a landmark 1998 astrophysics paper that used distant Type Ia supernovae to demonstrate that the universe’s expansion is accelerating, providing strong evidence for dark energy.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| High-z Supernova Search Team discovery paper on cosmic acceleration | 1 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysics paper
ⓘ
cosmology paper ⓘ scientific paper ⓘ |
| category | supernova cosmology ⓘ |
| conclusion |
a cosmological constant or similar dark energy component is required in the cosmological model
ⓘ
the expansion of the universe is accelerating ⓘ |
| cosmologicalParameterDiscussed |
cosmological constant density parameter Ω_Λ
ⓘ
cosmological constant Λ ⓘ matter density parameter Ω_m ⓘ |
| dataType | luminosity distance versus redshift ⓘ |
| era | late 20th century cosmology ⓘ |
| evidenceAgainst | simple matter-dominated decelerating universe ⓘ |
| evidenceType | observational evidence ⓘ |
| field |
astrophysics
ⓘ
cosmology ⓘ |
| impact |
contributed to the standard cosmological model with dark energy
ⓘ
helped establish the existence of dark energy ⓘ provided first strong direct evidence for an accelerating universe ⓘ |
| implies | cosmic expansion rate has increased over time ⓘ |
| involves | comparison of observed supernova brightness with theoretical cosmological models ⓘ |
| keyConcept |
Hubble expansion
ⓘ
cosmic acceleration ⓘ standard candles in cosmology ⓘ |
| language | English ⓘ |
| mainSubject |
accelerating expansion of the universe
ⓘ
cosmological constant ⓘ dark energy ⓘ |
| method |
Hubble diagram of high-redshift supernovae
ⓘ
standard candle analysis of Type Ia supernovae ⓘ |
| objectOfStudy | distant high-redshift supernovae ⓘ |
| providesEvidenceFor |
accelerating universe
ⓘ
dark energy ⓘ nonzero cosmological constant ⓘ |
| publicationType | peer-reviewed article ⓘ |
| publicationYear | 1998 ⓘ |
| recognizedAs |
key discovery paper for dark energy
ⓘ
landmark paper in cosmology ⓘ |
| relatedConcept |
Friedmann–Lemaître–Robertson–Walker cosmology
NERFINISHED
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Hubble diagram of Type Ia supernovae ⓘ distance modulus ⓘ redshift ⓘ |
| shortTitle | Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant NERFINISHED ⓘ |
| shows | distant Type Ia supernovae are dimmer than expected in a decelerating universe ⓘ |
| supportsModel | ΛCDM cosmological model NERFINISHED ⓘ |
| title | Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant NERFINISHED ⓘ |
| usesObservationOf | Type Ia supernovae ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
High-z Supernova Search Team
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notablePublication
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Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
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Adam G. Riess
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notableWork
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Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
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this entity surface form:
High-z Supernova Search Team discovery paper on cosmic acceleration