Lyman-alpha forest absorbers
E1326074
UNEXPLORED
Lyman-alpha forest absorbers are numerous, relatively low-density intergalactic hydrogen clouds seen as a series of narrow absorption lines in quasar spectra, tracing the large-scale structure of the universe.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lyman-alpha forest absorbers canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T18481907 — 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: Lyman-alpha forest absorbers Context triple: [damped Lyman-alpha system, contrastedWith, Lyman-alpha forest absorbers]
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A.
damped Lyman-alpha systems
Damped Lyman-alpha systems are high-column-density neutral hydrogen gas clouds observed in quasar spectra, serving as key probes of the interstellar medium and chemical evolution of galaxies in the early universe.
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B.
Lyman-Alpha Mapping Project
The Lyman-Alpha Mapping Project is a lunar science instrument that uses ultraviolet Lyman-alpha emissions to map and study the Moon’s surface, particularly its polar regions and potential water ice deposits.
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C.
Lyman-δ
Lyman-δ is the fourth spectral line in the Lyman series of hydrogen, corresponding to an electron transition from the n=5 to the n=1 energy level in the ultraviolet region.
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D.
The Large-Scale Structure of the Universe
The Large-Scale Structure of the Universe is a foundational cosmology book by James Peebles that systematically develops the theory and observations of how matter is distributed on the largest cosmic scales.
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E.
Lyman-β
Lyman-β is the second spectral line in the hydrogen Lyman series, corresponding to an electron transition from the fourth to the first energy level and emitting ultraviolet radiation.
- 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: Lyman-alpha forest absorbers Target entity description: Lyman-alpha forest absorbers are numerous, relatively low-density intergalactic hydrogen clouds seen as a series of narrow absorption lines in quasar spectra, tracing the large-scale structure of the universe.
-
A.
damped Lyman-alpha systems
Damped Lyman-alpha systems are high-column-density neutral hydrogen gas clouds observed in quasar spectra, serving as key probes of the interstellar medium and chemical evolution of galaxies in the early universe.
-
B.
Lyman-Alpha Mapping Project
The Lyman-Alpha Mapping Project is a lunar science instrument that uses ultraviolet Lyman-alpha emissions to map and study the Moon’s surface, particularly its polar regions and potential water ice deposits.
-
C.
Lyman-δ
Lyman-δ is the fourth spectral line in the Lyman series of hydrogen, corresponding to an electron transition from the n=5 to the n=1 energy level in the ultraviolet region.
-
D.
The Large-Scale Structure of the Universe
The Large-Scale Structure of the Universe is a foundational cosmology book by James Peebles that systematically develops the theory and observations of how matter is distributed on the largest cosmic scales.
-
E.
Lyman-β
Lyman-β is the second spectral line in the hydrogen Lyman series, corresponding to an electron transition from the fourth to the first energy level and emitting ultraviolet radiation.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
damped Lyman-alpha systems