Back تأثير دوبلر النسبوي Arabic Relativistički Dopplerov efekt BS Efecte Doppler relativista Catalan Relativistický Dopplerův jev Czech Efecto Doppler relativista Spanish Effet Doppler relativiste French Relativisztikus Doppler-effektus Hungarian Հարաբերական Դոպլերի էֆեկտ Armenian Effetto Doppler relativistico Italian Relativistisk Doppler-effekt NB
| Special relativity |
|---|
 |
The relativistic Doppler effect is the change in frequency, wavelength and amplitude[1] of light, caused by the relative motion of the source and the observer (as in the classical Doppler effect), when taking into account effects described by the special theory of relativity.
The relativistic Doppler effect is different from the non-relativistic Doppler effect as the equations include the time dilation effect of special relativity and do not involve the medium of propagation as a reference point. They describe the total difference in observed frequencies and possess the required Lorentz symmetry.
Astronomers know of three sources of redshift/blueshift: Doppler shifts; gravitational redshifts (due to light exiting a gravitational field); and cosmological expansion (where space itself stretches). This article concerns itself only with Doppler shifts.
- ^ Daniel Kiefer (2014). Relativistic Electron Mirrors: from High Intensity Laser–Nanofoil Interactions (illustrated ed.). Springer. p. 22. ISBN 978-3-319-07752-9. Extract of page 22