David Spergel
E929785
David Spergel is an American astrophysicist and cosmologist renowned for his pioneering work on the cosmic microwave background and the shape and composition of the universe.
All labels observed (3)
| Label | Occurrences |
|---|---|
| David Spergel canonical | 2 |
| David N. Spergel | 1 |
| Spergel | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11505361 — 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: David Spergel Context triple: [Princeton University Observatory, hasNotableMember, David Spergel]
-
A.
Daniel Eisenstein
Daniel Eisenstein is an American astrophysicist known for his pioneering work on baryon acoustic oscillations and the large-scale structure of the universe.
-
B.
Avi Loeb
Avi Loeb is an Israeli-American astrophysicist and Harvard professor known for his influential and sometimes controversial work on black holes, the early universe, and the search for extraterrestrial intelligence.
-
C.
Dorion Sagan
Dorion Sagan is an American science writer and essayist known for his works on evolution, ecology, and complexity, and for coauthoring influential books with his mother, biologist Lynn Margulis.
-
D.
Paul Steinhardt
Paul Steinhardt is an American theoretical physicist and cosmologist known for his work on inflationary cosmology, the cyclic model of the universe, and the theoretical prediction of quasicrystals.
-
E.
Rodrigo A. Ibata
Rodrigo A. Ibata is an astronomer known for his work on galactic structure and dynamics, including the identification of the Canis Major Dwarf Galaxy as a nearby satellite of the Milky Way.
- 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: David Spergel Target entity description: David Spergel is an American astrophysicist and cosmologist renowned for his pioneering work on the cosmic microwave background and the shape and composition of the universe.
-
A.
Daniel Eisenstein
Daniel Eisenstein is an American astrophysicist known for his pioneering work on baryon acoustic oscillations and the large-scale structure of the universe.
-
B.
Avi Loeb
Avi Loeb is an Israeli-American astrophysicist and Harvard professor known for his influential and sometimes controversial work on black holes, the early universe, and the search for extraterrestrial intelligence.
-
C.
Dorion Sagan
Dorion Sagan is an American science writer and essayist known for his works on evolution, ecology, and complexity, and for coauthoring influential books with his mother, biologist Lynn Margulis.
-
D.
Paul Steinhardt
Paul Steinhardt is an American theoretical physicist and cosmologist known for his work on inflationary cosmology, the cyclic model of the universe, and the theoretical prediction of quasicrystals.
-
E.
Rodrigo A. Ibata
Rodrigo A. Ibata is an astronomer known for his work on galactic structure and dynamics, including the identification of the Canis Major Dwarf Galaxy as a nearby satellite of the Milky Way.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
academic
ⓘ
astrophysicist ⓘ cosmologist ⓘ human ⓘ university professor ⓘ |
| awardReceived |
Dannie Heineman Prize for Astrophysics
ⓘ
linked to:
Heineman Prize for Astrophysics
Gruber Cosmology Prize ⓘ Heineman Prize for Astrophysics ⓘ MacArthur Fellowship ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| educatedAt | Princeton University ⓘ |
| employer | Princeton University ⓘ |
| familyName |
Spergel
ⓘ
linked to:
David Spergel
|
| fieldOfWork |
astrophysics
ⓘ
cosmic microwave background ⓘ cosmological parameter estimation ⓘ cosmology ⓘ dark energy ⓘ dark matter ⓘ large-scale structure of the universe ⓘ |
| givenName | David ⓘ |
| hasRole |
observational cosmologist
ⓘ
theoretical cosmologist ⓘ |
| influenced | precision cosmology ⓘ |
| languageSpoken | English ⓘ |
| memberOf |
American Academy of Arts and Sciences
ⓘ
National Academy of Sciences ⓘ |
| name | David Spergel ⓘ |
| notableFor |
contributions to determining the composition of the universe
ⓘ
contributions to determining the shape of the universe ⓘ leadership in major cosmic microwave background experiments ⓘ pioneering work on the cosmic microwave background ⓘ |
| notableWork |
analysis of WMAP data
ⓘ
constraints on cosmological parameters from CMB observations ⓘ |
| occupation |
scientist
ⓘ
university teacher ⓘ |
| positionHeld |
chair of the Department of Astrophysical Sciences at Princeton University
ⓘ
professor of astrophysics ⓘ |
| researchInterest |
baryon acoustic oscillations
ⓘ
inflationary cosmology ⓘ structure formation in the universe ⓘ |
| sexOrGender | male ⓘ |
| workLocation |
Princeton, New Jersey
ⓘ
linked to:
Princeton, New Jersey, United States
|
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: David Spergel Description of subject: David Spergel is an American astrophysicist and cosmologist renowned for his pioneering work on the cosmic microwave background and the shape and composition of the universe.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: David Spergel
linked to: David Spergel