quasar absorption line system
C40745
concept
A quasar absorption line system is a collection of gas along the line of sight to a distant quasar that imprints characteristic absorption features on the quasar’s spectrum, revealing the physical and chemical properties of intervening cosmic structures.
All labels observed (1)
| Label | Occurrences |
|---|---|
| quasar absorption line system 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: quasar absorption line system
Generated description
A quasar absorption line system is a collection of gas along the line of sight to a distant quasar that imprints characteristic absorption features on the quasar’s spectrum, revealing the physical and chemical properties of intervening cosmic structures.
Instances (1)
| Instance | Via concept surface |
|---|---|
|
damped Lyman-alpha systems
surface form:
damped Lyman-alpha system
|
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