Spectral Doppler

См. также в других словарях:

• DOPPLER-FIZEAU (EFFET) — DOPPLER FIZEAU EFFE Modification de la fréquence d’une onde progressive monochromatique (sons, ultrasons, lumière, ondes radio, etc.) par suite du mouvement de la source de radiation ou du récepteur. C’est ainsi que, lorsque la source s’éloigne… …   Encyclopédie Universelle

• Spectral imaging — is a branch of spectroscopy in which a complete spectrum or some spectral information (such as the Doppler shift or Zeeman splitting of a spectral line) is collected at every location in an image plane. Applications include astronomy, solar… …   Wikipedia

• Spectral line — Continuous spectrum Emission line …   Wikipedia

• 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

• 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

• 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 spectroscopy — Diagram showing how a smaller object (such as an extrasolar planet) orbiting a larger object (such as a star) could produce changes in position and velocity of the latter as they orbit their common center of mass (red cross). Doppler spectroscopy …   Wikipedia

• Doppler width of spectral line — doplerinis spektro linijos plotis statusas T sritis fizika atitikmenys: angl. Doppler width of spectral line vok. Dopplersche Spektrallinienbreite, f rus. доплеровская ширина спектральной линии, f pranc. largeur Doppler de la raie spectrale, f …   Fizikos terminų žodynas

• Spectral linewidth — The spectral linewidth characterizes the width of a spectral line, such as in the electromagnetic emission spectrum of an atom, or the frequency spectrum of an acoustic or electronic system. For example, the emission of an atom usually has a very …   Wikipedia

• Spectral resolution — The spectral resolution or resolving power of a spectrograph, or, more generally, of a frequency spectrum, is a measure of its power to resolve features in the electromagnetic spectrum. It is usually defined byR = {lambdaoverDeltalambda}where… …   Wikipedia

• Décalage spectral — Décalage vers le rouge On se rend compte que les ondes qui proviennent d une source lumineuse sont plus longues lorsque celle ci s éloigne. Les ondes sont « étalées » et la lumière qui nous parvient est donc rougie, c est le décalage… …   Wikipédia en Français