W3(OH)
E476473
W3(OH) is a compact, massive star-forming region and strong OH maser source within the W3 molecular cloud complex, notable for its intense radio and infrared emission.
All labels observed (1)
| Label | Occurrences |
|---|---|
| W3(OH) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4886019 — 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: W3(OH) Context triple: [W3 star-forming region, contains, W3(OH)]
-
A.
W3
W3 is a common shorthand for the World Wide Web, the global system of interlinked hypertext documents and resources accessed via the internet.
-
B.
W&A
W&A is the commonly used abbreviation for the Western and Atlantic Railroad, a historic rail line in the southeastern United States.
-
C.
H&W
H&W is the abbreviated logo text used by Harland and Wolff, the historic Belfast-based shipbuilding and heavy engineering company.
-
D.
The W
The W is the commonly used nickname for Mississippi University for Women, a public university in Columbus, Mississippi.
-
E.
Wicks
Wicks is a surname most notably associated with former professional basketball player Sidney Wicks.
- 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: W3(OH) Target entity description: W3(OH) is a compact, massive star-forming region and strong OH maser source within the W3 molecular cloud complex, notable for its intense radio and infrared emission.
-
A.
W3
W3 is a common shorthand for the World Wide Web, the global system of interlinked hypertext documents and resources accessed via the internet.
-
B.
W&A
W&A is the commonly used abbreviation for the Western and Atlantic Railroad, a historic rail line in the southeastern United States.
-
C.
H&W
H&W is the abbreviated logo text used by Harland and Wolff, the historic Belfast-based shipbuilding and heavy engineering company.
-
D.
The W
The W is the commonly used nickname for Mississippi University for Women, a public university in Columbus, Mississippi.
-
E.
Wicks
Wicks is a surname most notably associated with former professional basketball player Sidney Wicks.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
OH maser source ⓘ infrared source ⓘ radio source ⓘ star-forming region ⓘ |
| associatedWith |
dense molecular gas
ⓘ
dusty core ⓘ ultracompact H II region ⓘ |
| belongsTo | Milky Way galaxy NERFINISHED ⓘ |
| distanceFromEarth |
about 2 kiloparsecs
ⓘ
about 6,000 light-years ⓘ |
| emits |
strong infrared radiation
ⓘ
strong radio continuum emission ⓘ |
| has | hot molecular core nearby ⓘ |
| hasAngularSize | sub-arcsecond (for compact core) ⓘ |
| hasEnvironment |
high extinction
ⓘ
high gas density ⓘ |
| hasMaserEmission |
CH3OH
ⓘ
H2O ⓘ OH ⓘ |
| hasOutflows | molecular outflows ⓘ |
| hasParallaxMeasurements | yes ⓘ |
| hasPhysicalProcess |
gravitational collapse of molecular gas
ⓘ
ionization by massive young stars ⓘ maser amplification by population inversion ⓘ |
| hasProperMotionMeasurements | yes ⓘ |
| hasSpectralLineEmission |
hydroxyl (OH)
ⓘ
methanol (CH3OH) ⓘ water (H2O) ⓘ |
| hasStarFormation |
embedded protostars
ⓘ
massive stars ⓘ |
| is |
compact
ⓘ
massive ⓘ well-studied maser source ⓘ |
| locatedIn |
Perseus Arm of the Milky Way
NERFINISHED
ⓘ
W3 molecular cloud complex NERFINISHED ⓘ constellation Cassiopeia NERFINISHED ⓘ |
| near |
W3 Main
NERFINISHED
ⓘ
W3(H2O) NERFINISHED ⓘ |
| observedBy |
Very Large Array
NERFINISHED
ⓘ
Very Long Baseline Interferometry NERFINISHED ⓘ radio interferometers ⓘ |
| partOf | W3 star-forming complex NERFINISHED ⓘ |
| usedFor |
Galactic structure measurements
ⓘ
studies of maser kinematics ⓘ studies of massive star formation ⓘ |
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: W3(OH) Description of subject: W3(OH) is a compact, massive star-forming region and strong OH maser source within the W3 molecular cloud complex, notable for its intense radio and infrared emission.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.