Gunn-Peterson trough

English

Etymology

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.

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.

Coordinate terms

  • Lyman-alpha forest
  • Reionization Era / Era of Reionization
  • Reionization Epoch / Epoch of Reionization
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