Astrophysics (Index)About

Doppler broadening

(thermal broadening, thermal Doppler broadening)
(broadening of spectral lines due to velocities of the photon sources)

Doppler broadening (aka thermal broadening or thermal Doppler broadening) spectral line width due to the motion of the particles emitting the photons, e.g., thermal motion. The radial-velocity component of the motion creates varied frequencies of the photons. By studying the shape of the line, inferences can be made about the source of the radiation.

Further reading:

Referenced by pages:
active galactic nucleus (AGN)
broad emission line region
broad-line region (BLR)
line broadening
line shape function
Voigt profile
Wolf-Rayet star