Concept information
Preferred term
Doppler effect
Definition
- Change in frequency of a wave (light, sound) due to the relative motion of source and receiver. Approaching objects have their wavelengths shortened. Receding objects have emitted wavelengths lengthened. Doppler, after Christian Andreas Doppler (1803-1853), Austrian physicist who first described how the observed frequency of sound and light waves is affected by the relative motion of the source and the detector. (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=doppler+effect&formSubmit=Search&showAll=1)
Broader concept
Synonym(s)
- Doppler broadening
- Doppler shift
In other languages
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French
-
déplacement Doppler
-
élargissement Doppler
URI
http://data.loterre.fr/ark:/67375/MDL-XCB0VD01-N
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