Doppler broadening

English

Etymology

From being produced by the action of the Doppler effect on individual atoms and molecules.

Pronunciation

• (General American) IPA^(key): /ˈdɔp.lɚ ˈbɹɔd.nɪŋ/, /ˈdɔp.lɚ ˈbɹɔd.ənˌɪŋ/

Noun

Doppler broadening

1. (physics) The broadening of the spectral lines of a high-temperature or rapidly-rotating object due to redshifting of spectral lines from atoms and molecules moving away from the observer and blueshifting of spectral lines from atoms and molecules moving toward the observer.