Gunn-Peterson Trough Definition

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.
Wiktionary

Origin of Gunn-Peterson Trough

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

    From Wiktionary

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