Dark Energy Survey
E76900
The Dark Energy Survey is a large international astronomical project that uses a wide-field camera on a Chilean telescope to map hundreds of millions of galaxies and study the nature of dark energy and cosmic acceleration.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Dark Energy Survey canonical | 10 |
| DES Data Release 1 | 1 |
| DES Data Release 2 | 1 |
| DES Data Release 3 | 1 |
| Dark Energy Survey collaboration | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T607211 — 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: Dark Energy Survey Context triple: [Cerro Tololo Inter-American Observatory, hostsSurvey, Dark Energy Survey]
-
A.
Dark Energy Camera
The Dark Energy Camera is a powerful wide-field astronomical imaging instrument designed to study dark energy and map the large-scale structure of the universe.
-
B.
Advanced Camera for Surveys
The Advanced Camera for Surveys is a high-resolution imaging instrument on the Hubble Space Telescope designed to capture detailed observations of distant galaxies, galaxy clusters, and other faint astronomical objects.
-
C.
Vera C. Rubin Observatory
The Vera C. Rubin Observatory is a next-generation astronomical facility in Chile designed to conduct the Legacy Survey of Space and Time, producing an unprecedented, deep, wide, and fast imaging survey of the night sky.
-
D.
NOIRLab
NOIRLab is a U.S. National Science Foundation center that operates major ground-based optical and infrared observatories across the Americas for astronomical research.
-
E.
OGLE-IV survey
The OGLE-IV survey is a large-scale astronomical sky survey focused on detecting microlensing events and variable stars, conducted with the Warsaw Telescope at Las Campanas Observatory.
- 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: Dark Energy Survey Target entity description: The Dark Energy Survey is a large international astronomical project that uses a wide-field camera on a Chilean telescope to map hundreds of millions of galaxies and study the nature of dark energy and cosmic acceleration.
-
A.
Dark Energy Camera
The Dark Energy Camera is a powerful wide-field astronomical imaging instrument designed to study dark energy and map the large-scale structure of the universe.
-
B.
Advanced Camera for Surveys
The Advanced Camera for Surveys is a high-resolution imaging instrument on the Hubble Space Telescope designed to capture detailed observations of distant galaxies, galaxy clusters, and other faint astronomical objects.
-
C.
Vera C. Rubin Observatory
The Vera C. Rubin Observatory is a next-generation astronomical facility in Chile designed to conduct the Legacy Survey of Space and Time, producing an unprecedented, deep, wide, and fast imaging survey of the night sky.
-
D.
NOIRLab
NOIRLab is a U.S. National Science Foundation center that operates major ground-based optical and infrared observatories across the Americas for astronomical research.
-
E.
OGLE-IV survey
The OGLE-IV survey is a large-scale astronomical sky survey focused on detecting microlensing events and variable stars, conducted with the Warsaw Telescope at Las Campanas Observatory.
- F. None of above. chosen
Statements (70)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical survey
ⓘ
cosmology experiment ⓘ international scientific collaboration ⓘ |
| abbreviation | DES ⓘ |
| cameraFieldOfView | approximately 3 square degrees ⓘ |
| cameraResolution | about 570 megapixels ⓘ |
| collaborationSize | over 400 scientists ⓘ |
| cosmologicalProbe |
Type Ia supernovae
ⓘ
baryon acoustic oscillations ⓘ cluster counts ⓘ weak lensing and galaxy clustering ⓘ |
| countryOfLeadInstitution |
United States
ⓘ
linked to:
United States of America
|
| countryOfObservation | Chile ⓘ |
| dataPolicy | public data releases ⓘ |
| dataRelease |
DES Data Release 1
ⓘ
linked to:
Dark Energy Survey
DES Data Release 2 ⓘ
linked to:
Dark Energy Survey
DES Data Release 3 ⓘ
linked to:
Dark Energy Survey
|
| endYear | 2019 ⓘ |
| field |
astrophysics
ⓘ
observational cosmology ⓘ |
| filter |
Y-band
ⓘ
g-band ⓘ i-band ⓘ r-band ⓘ z-band ⓘ |
| fundingAgency |
U.S. Department of Energy
ⓘ
U.S. National Science Foundation ⓘ
linked to:
National Science Foundation
|
| goal |
constrain the equation of state of dark energy
ⓘ
discover thousands of Type Ia supernovae ⓘ map hundreds of millions of galaxies ⓘ measure the growth of cosmic structure ⓘ test models of cosmic acceleration ⓘ |
| hemisphere | southern sky ⓘ |
| hostObservatoryOperator | National Optical Astronomy Observatory ⓘ |
| instrumentAbbreviation |
DECam
ⓘ
linked to:
Dark Energy Camera
|
| leadInstitution | Fermi National Accelerator Laboratory ⓘ |
| numberOfFilters | 5 ⓘ |
| numberOfInstitutions | over 25 institutions ⓘ |
| participatingRegions |
Australia
ⓘ
Europe ⓘ South America ⓘ United States ⓘ
linked to:
United States of America
|
| producedCatalog |
cluster catalogs
ⓘ
galaxy catalogs ⓘ supernova light-curve catalogs ⓘ weak lensing shear catalogs ⓘ |
| relatedProject |
Dark Energy Spectroscopic Instrument
ⓘ
Legacy Survey of Space and Time ⓘ |
| researchArea |
Milky Way structure
ⓘ
linked to:
Milky Way
cosmic acceleration ⓘ dark energy ⓘ galaxy clustering ⓘ galaxy evolution ⓘ large-scale structure of the Universe ⓘ near-Earth objects ⓘ supernova cosmology ⓘ weak gravitational lensing ⓘ |
| skyCoverage | about 5000 square degrees ⓘ |
| startYear | 2013 ⓘ |
| supernovaFields | 10 fields ⓘ |
| surveyDuration | 6 years ⓘ |
| surveyPhase |
main survey
ⓘ
science verification phase ⓘ supernova survey ⓘ |
| telescope |
Víctor M. Blanco Telescope
ⓘ
linked to:
Víctor M. Blanco 4-meter Telescope
|
| telescopeLocation | Cerro Tololo Inter-American Observatory ⓘ |
| usesInstrument | Dark Energy Camera ⓘ |
| wavelengthRange |
near-infrared
ⓘ
optical ⓘ |
| website | https://www.darkenergysurvey.org/ ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Dark Energy Survey Description of subject: The Dark Energy Survey is a large international astronomical project that uses a wide-field camera on a Chilean telescope to map hundreds of millions of galaxies and study the nature of dark energy and cosmic acceleration.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Dark Energy Survey
linked to: Dark Energy Survey
linked to: Dark Energy Survey
linked to: Dark Energy Survey