Herbig Ae/Be stars
E459056
Herbig Ae/Be stars are young, intermediate-mass pre-main-sequence stars that are still contracting toward the main sequence and are often surrounded by gas and dust disks.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Herbig Ae/Be stars canonical | 9 |
| young stellar object R Monocerotis | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617837 — 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: Herbig Ae/Be stars Context triple: [NGC 6530, contains, Herbig Ae/Be stars]
-
A.
Herbig–Haro objects
Herbig–Haro objects are small, bright patches of nebulosity formed when jets of gas from newborn stars collide with surrounding interstellar material.
-
B.
R Coronae Australis
R Coronae Australis is a young variable star embedded in the Corona Australis star-forming region, notable for its irregular brightness changes and association with reflection nebulosity.
-
C.
Wolf–Rayet stars
Wolf–Rayet stars are extremely hot, massive, and luminous evolved stars characterized by powerful stellar winds and strong emission lines from heavy elements in their spectra.
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D.
Scorpius–Centaurus OB association
The Scorpius–Centaurus OB association is the nearest large group of young, massive stars to the Sun, spanning the constellations Scorpius and Centaurus and playing a key role in studies of recent star formation in our Galactic neighborhood.
-
E.
W3 star-forming region
W3 star-forming region is a massive, active stellar nursery in the Milky Way known for its dense molecular clouds and prolific formation of young, high-mass stars.
- 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: Herbig Ae/Be stars Target entity description: Herbig Ae/Be stars are young, intermediate-mass pre-main-sequence stars that are still contracting toward the main sequence and are often surrounded by gas and dust disks.
-
A.
Herbig–Haro objects
Herbig–Haro objects are small, bright patches of nebulosity formed when jets of gas from newborn stars collide with surrounding interstellar material.
-
B.
R Coronae Australis
R Coronae Australis is a young variable star embedded in the Corona Australis star-forming region, notable for its irregular brightness changes and association with reflection nebulosity.
-
C.
Wolf–Rayet stars
Wolf–Rayet stars are extremely hot, massive, and luminous evolved stars characterized by powerful stellar winds and strong emission lines from heavy elements in their spectra.
-
D.
Scorpius–Centaurus OB association
The Scorpius–Centaurus OB association is the nearest large group of young, massive stars to the Sun, spanning the constellations Scorpius and Centaurus and playing a key role in studies of recent star formation in our Galactic neighborhood.
-
E.
W3 star-forming region
W3 star-forming region is a massive, active stellar nursery in the Milky Way known for its dense molecular clouds and prolific formation of young, high-mass stars.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
intermediate-mass star
ⓘ
pre-main-sequence star ⓘ young stellar object ⓘ |
| ageRange | approximately 1 to 10 million years ⓘ |
| approachingPhase | main sequence ⓘ |
| canShow |
accretion signatures
ⓘ
jets or outflows ⓘ stellar winds ⓘ |
| differenceFromTTauri |
earlier spectral type
ⓘ
higher mass ⓘ |
| discoveredBy | George Herbig ⓘ |
| discoveryEpoch | 1960s ⓘ |
| diskRole | sites of possible planet formation ⓘ |
| evolutionaryStage | pre-main-sequence ⓘ |
| gasAccretionMechanism | magnetospheric or boundary-layer accretion ⓘ |
| HRDiagramLocation | above the main sequence ⓘ |
| infraredExcessCause | thermal emission from circumstellar dust ⓘ |
| luminosity | higher than main-sequence stars of same spectral type ⓘ |
| magneticActivity | can possess magnetic fields ⓘ |
| namedAfter | George Herbig ⓘ |
| observedWith |
infrared telescopes
ⓘ
millimeter interferometers ⓘ |
| oftenAssociatedWith | reflection nebulae ⓘ |
| oftenLocatedIn |
molecular clouds
ⓘ
star-forming regions ⓘ |
| oftenShow |
P Cygni profiles
ⓘ
strong H-alpha emission ⓘ |
| relatedTo | T Tauri stars ⓘ |
| rotation | moderate to rapid rotation ⓘ |
| showEmissionLines | true ⓘ |
| showInfraredExcess | true ⓘ |
| stillContracting | true ⓘ |
| surfaceTemperature | approximately 7,500 to 30,000 K ⓘ |
| surroundedBy |
dust disk
ⓘ
gas disk ⓘ protoplanetary disk ⓘ |
| typicalEmissionLines |
forbidden lines
ⓘ
hydrogen Balmer lines ⓘ |
| typicalEnvironment | clusters and associations ⓘ |
| typicalMassRange | 2 to 8 solar masses ⓘ |
| typicalSpectralType |
A
ⓘ
B ⓘ |
| usedToStudy |
disk evolution and dispersal
ⓘ
early stellar evolution of intermediate-mass stars ⓘ planet formation around intermediate-mass stars ⓘ |
| variability |
photometric variability
ⓘ
spectroscopic variability ⓘ |
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: Herbig Ae/Be stars Description of subject: Herbig Ae/Be stars are young, intermediate-mass pre-main-sequence stars that are still contracting toward the main sequence and are often surrounded by gas and dust disks.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Open cluster NGC 6530
subject linked to:
Chamaeleon constellation
subject linked to:
open star cluster NGC 6611
subject linked to:
open cluster IC 1848
linked to: Herbig Ae/Be stars