broadening of spectral lines by the Doppler effect

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• Doppler effect — Change of wavelength caused by motion of the source. An animation illustrating how the Doppler effect causes a car engine or siren to soun …   Wikipedia

• Spectral line — Continuous spectrum Emission line …   Wikipedia

• Doppler broadening — In atomic physics, Doppler broadening is the broadening of spectral lines due to the Doppler effect caused by a distribution of velocities of atoms or molecules. Different velocities of the emitting particles result in different (Doppler) shifts …   Wikipedia

• Doppler imaging — Not to be confused with Doppler ultrasound. Inhomogeneous structures on stellar surfaces, i.e. temperature differences, chemical composition or magnetic fields, create characteristic distortions in the spectral lines due to the Doppler effect.… …   Wikipedia

• Wolf effect — The Wolf Effect (sometimes Wolf shift ) is a frequency shift in the electromagnetic spectrum. [Emil Wolf, [http://www.worldscibooks.com/physics/4331.html Selected Works of Emil Wolf: With Commentary] (2001)… …   Wikipedia

• Dicke effect — Dicke effect, also known as Dicke narrowing (or sometimes collisional narrowing), is named after Robert H. Dicke. The term refers to narrowing of the Doppler broadening of a spectral line due to collisions the emitting species (usually an atom or …   Wikipedia

• Plasma diagnostics — are experimental techniques used to measure properties of a plasma such as temperature and density. Langmuir probe Measurements with electric probes, called Langmuir probes, are the oldest and most often used procedures for low temperature… …   Wikipedia

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• Redshift — This article is about the astronomical phenomenon. For other uses, see Redshift (disambiguation). Physical cosmology …   Wikipedia

• Star — For other uses, see Star (disambiguation) …   Wikipedia

• Tau Ceti — Starbox begin name=Tau Ceti Starbox image caption=Tau Ceti (highlighted center) in the southern part of the constellation Cetus. Starbox observe epoch=J2000 constell=Cetus ra=RA|01|44|04.0829cite web url=http://simbad3.u strasbg.fr/sim… …   Wikipedia