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Gunn-Peterson trough

Gunn-Peterson trough noun: a feature in astronomical spectrometry of distant light, caused by the Reionization Era's absorption of UV light, leaving a gap in the spectrum.

Noun

Gunn-Peterson trough (plural Gunn-Peterson troughs)

  1. A feature in astronomical spectrometry of distant light, caused by the Reionization Era's absorption of UV light, leaving a gap in the spectrum.

Forms of Gunn-Peterson trough

pluralGunn-Peterson troughs

Origin of Gunn-Peterson trough

From the theoreticians who predicted this effect, astronomers James E. Gunn and Bruce Peterson, which creates a lack of radiation at a span of wavelengths.

Questions about Gunn-Peterson trough

What does Gunn-Peterson trough mean?
Gunn-Peterson trough means a feature in astronomical spectrometry of distant light, caused by the Reionization Era's absorption of UV light, leaving a gap in the spectrum.
What part of speech is Gunn-Peterson trough?
Gunn-Peterson trough is a noun.
What is the plural of Gunn-Peterson trough?
The plural of Gunn-Peterson trough is Gunn-Peterson troughs.

Words near Gunn-Peterson trough in the dictionary

  1. Gunn
  2. Gunn diode
  3. Gunn diodes
  4. Gunn effect
  5. Gunn effects
  6. Gunn-Peterson trough
  7. Gunn-Peterson troughs
  8. gunna
  9. gunnade
  10. gunnades
  11. gunnage

Source and license

Adapted from Wiktionary: Gunn-Peterson trough (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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