Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

E934860

astrophysics paper cosmology paper scientific paper

"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.

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All labels observed (2)

Label	Occurrences
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant canonical	3
High-z Supernova Search Team discovery paper on cosmic acceleration	1

How this entity was disambiguated

This entity first appeared as the object of triple T11583756 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Context triple: [High-z Supernova Search Team, notablePublication, Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant]

A. Supernova Cosmology Project
The Supernova Cosmology Project is an international research collaboration that used observations of distant Type Ia supernovae to discover the accelerating expansion of the universe, providing key evidence for dark energy.
B. Quintessence: The Mystery of Missing Mass in the Universe
"Quintessence: The Mystery of Missing Mass in the Universe" is a popular science book that explores the nature of dark matter, dark energy, and the cosmic forces shaping the universe’s structure and fate.
C. The Large-Scale Structure of the Universe
The Large-Scale Structure of the Universe is a foundational cosmology book by James Peebles that systematically develops the theory and observations of how matter is distributed on the largest cosmic scales.
D. Recalibration of the Hubble constant
Recalibration of the Hubble constant is a landmark astrophysical study by Allan R. Sandage that refined the value of the universe’s expansion rate using improved distance measurements to galaxies.
E. Hubble–Humason galaxy redshift measurements
The Hubble–Humason galaxy redshift measurements are a landmark set of observations that extended and refined Edwin Hubble’s work on the expanding universe by systematically measuring the redshifts of distant galaxies.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Target entity description: "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.

A. Supernova Cosmology Project
The Supernova Cosmology Project is an international research collaboration that used observations of distant Type Ia supernovae to discover the accelerating expansion of the universe, providing key evidence for dark energy.
B. Quintessence: The Mystery of Missing Mass in the Universe
"Quintessence: The Mystery of Missing Mass in the Universe" is a popular science book that explores the nature of dark matter, dark energy, and the cosmic forces shaping the universe’s structure and fate.
C. The Large-Scale Structure of the Universe
The Large-Scale Structure of the Universe is a foundational cosmology book by James Peebles that systematically develops the theory and observations of how matter is distributed on the largest cosmic scales.
D. Recalibration of the Hubble constant
Recalibration of the Hubble constant is a landmark astrophysical study by Allan R. Sandage that refined the value of the universe’s expansion rate using improved distance measurements to galaxies.
E. Hubble–Humason galaxy redshift measurements
The Hubble–Humason galaxy redshift measurements are a landmark set of observations that extended and refined Edwin Hubble’s work on the expanding universe by systematically measuring the redshifts of distant galaxies.
F. None of above. chosen

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 ⓘ linked to: FLRW cosmological models Hubble diagram of Type Ia supernovae ⓘ distance modulus ⓘ redshift ⓘ
shortTitle	Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant ⓘ
shows	distant Type Ia supernovae are dimmer than expected in a decelerating universe ⓘ
supportsModel	ΛCDM cosmological model ⓘ linked to: Lambda-CDM model
title	Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant ⓘ
usesObservationOf	Type Ia supernovae ⓘ

How these facts were elicited

Referenced by (4)

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

High-z Supernova Search Team → notablePublication → Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant ⓘ

Adam G. Riess → notableWork → High-z Supernova Search Team discovery paper on cosmic acceleration ⓘ

linked to: Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant → title → Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant ⓘ

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant → shortTitle → Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant ⓘ

All labels observed (2)

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Statements (46)

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Referenced by (4)

How this entity was disambiguated

How these facts were elicited