DopplerSpektrumsbreite
DopplerSpektrumsbreite, also known as Doppler broadening, is a phenomenon in spectroscopy where the spectral lines of a substance are broadened due to the Doppler effect. This effect occurs when the source of the spectral lines is moving relative to the observer. The Doppler effect causes a shift in the frequency of the light emitted or absorbed by the moving source, resulting in a broadening of the spectral lines.
The DopplerSpektrumsbreite is proportional to the velocity of the moving particles and the wavelength of the
DopplerSpektrumsbreite = 2 * (wavelength / speed of light) * (velocity / 2)
where wavelength is the wavelength of the light, speed of light is the speed of light in
Doppler broadening is commonly observed in astrophysics, where it is used to study the motion of stars