neutral hydrogen absorber
C40746
concept
A neutral hydrogen absorber is an astronomical system or region containing sufficient neutral hydrogen gas to produce detectable absorption features, typically in the Lyman series, in the spectrum of a background light source such as a quasar or galaxy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| neutral hydrogen absorber canonical | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: neutral hydrogen absorber
Generated description
A neutral hydrogen absorber is an astronomical system or region containing sufficient neutral hydrogen gas to produce detectable absorption features, typically in the Lyman series, in the spectrum of a background light source such as a quasar or galaxy.
Instances (1)
| Instance | Via concept surface |
|---|---|
|
damped Lyman-alpha systems
surface form:
damped Lyman-alpha system
|
— |