Gunn-Peterson trough

短语

词形变化

Gunn-Peterson troughs 复数 Gunn-Peterson troughs

释义与例句

n.
  1. 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.

词源

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.

来源：wiktionary