Maarten Schmidt
E472750
Maarten Schmidt was a Dutch astronomer best known for his pioneering work on quasars and for developing the Schmidt law relating gas density to star formation in galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Maarten Schmidt canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T4814356 — 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: Maarten Schmidt Context triple: [Jan Oort, notableStudent, Maarten Schmidt]
-
A.
Allan R. Sandage
Allan R. Sandage was a prominent American astronomer known for his pioneering work on the expansion rate of the universe, the cosmic distance scale, and the age of the cosmos.
-
B.
Vera Rubin
Vera Rubin was an American astronomer whose pioneering work on galaxy rotation curves provided key evidence for the existence of dark matter.
-
C.
Milton Humason
Milton Humason was an American astronomer who, despite lacking formal education, became a key collaborator of Edwin Hubble and made crucial spectroscopic observations that helped establish the evidence for the expanding universe.
-
D.
Walter Baade
Walter Baade was a German astronomer whose work on variable stars and the structure of the Milky Way led to a major revision of the cosmic distance scale and our understanding of the universe’s size and age.
-
E.
Geoffrey Burbidge
Geoffrey Burbidge was a British-American astrophysicist best known for his pioneering work on stellar nucleosynthesis and the origin of the chemical elements in the universe.
- 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: Maarten Schmidt Target entity description: Maarten Schmidt was a Dutch astronomer best known for his pioneering work on quasars and for developing the Schmidt law relating gas density to star formation in galaxies.
-
A.
Allan R. Sandage
Allan R. Sandage was a prominent American astronomer known for his pioneering work on the expansion rate of the universe, the cosmic distance scale, and the age of the cosmos.
-
B.
Vera Rubin
Vera Rubin was an American astronomer whose pioneering work on galaxy rotation curves provided key evidence for the existence of dark matter.
-
C.
Milton Humason
Milton Humason was an American astronomer who, despite lacking formal education, became a key collaborator of Edwin Hubble and made crucial spectroscopic observations that helped establish the evidence for the expanding universe.
-
D.
Walter Baade
Walter Baade was a German astronomer whose work on variable stars and the structure of the Milky Way led to a major revision of the cosmic distance scale and our understanding of the universe’s size and age.
-
E.
Geoffrey Burbidge
Geoffrey Burbidge was a British-American astrophysicist best known for his pioneering work on stellar nucleosynthesis and the origin of the chemical elements in the universe.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
astronomer
ⓘ
astrophysicist ⓘ human ⓘ |
| academicDegree | PhD in astronomy ⓘ |
| awardReceived |
Bruce Medal
NERFINISHED
ⓘ
Gold Medal of the Royal Astronomical Society NERFINISHED ⓘ Henry Norris Russell Lectureship NERFINISHED ⓘ James Craig Watson Medal NERFINISHED ⓘ Kavli Prize in Astrophysics NERFINISHED ⓘ |
| countryOfBirth | Kingdom of the Netherlands NERFINISHED ⓘ |
| countryOfCitizenship |
Kingdom of the Netherlands
ⓘ
United States of America ⓘ |
| countryOfDeath | United States of America ⓘ |
| dateOfBirth | 1929-12-28 ⓘ |
| dateOfDeath | 2022-09-17 ⓘ |
| educatedAt |
Leiden University
NERFINISHED
ⓘ
University of Groningen NERFINISHED ⓘ |
| employer |
California Institute of Technology
ⓘ
Mount Wilson and Palomar Observatories NERFINISHED ⓘ |
| familyName | Schmidt NERFINISHED ⓘ |
| fieldOfWork |
astronomy
ⓘ
astrophysics ⓘ extragalactic astronomy ⓘ quasar astronomy ⓘ |
| givenName | Maarten NERFINISHED ⓘ |
| influenced |
observational cosmology
ⓘ
studies of active galactic nuclei ⓘ theory of galaxy evolution ⓘ |
| knownFor |
Schmidt law relating gas density to star formation rate in galaxies
NERFINISHED
ⓘ
Schmidt–Kennicutt law NERFINISHED ⓘ demonstrating cosmological distances of quasars ⓘ identification of 3C 273 as a high-redshift quasar ⓘ pioneering work on quasars ⓘ |
| languageSpoken |
Dutch
ⓘ
English ⓘ |
| memberOf |
National Academy of Sciences
ⓘ
Royal Netherlands Academy of Arts and Sciences NERFINISHED ⓘ |
| notableWork |
paper formulating the Schmidt law of star formation
ⓘ
paper identifying 3C 273 as a quasar ⓘ |
| placeOfBirth | Groningen NERFINISHED ⓘ |
| placeOfDeath | Fresno NERFINISHED ⓘ |
| positionHeld | professor of astronomy at California Institute of Technology ⓘ |
| sexOrGender | male ⓘ |
| workLocation | Pasadena NERFINISHED ⓘ |
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: Maarten Schmidt Description of subject: Maarten Schmidt was a Dutch astronomer best known for his pioneering work on quasars and for developing the Schmidt law relating gas density to star formation in galaxies.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.