A phenomenon in which light from distant sources is red-shifted because space is expanding (and objects in the universe are receding from other objects due to this expansion).
shift toward the red in the spectra of light reaching us from the stars in distant galaxies
An increase of light wavelengths, caused by a motion away from the observer. So called because red light has longer wavelengths than blue light.
Motion-induced change in the wavelength of light emitted from a source moving away from us. The relative recessional motion causes the wave to have an observed wavelength longer (and hence redder) than it would if it were not moving.
(astronomy) a shift in the spectra of distant galaxies toward longer wavelengths; generally interpreted as the Doppler effect resulting from the velocity at which they recede as the universe expands
When an object, such as a galaxy, is going away from you, the light it puts out appears to become longer in wavelength â€“ that is, shifted towards the red (long) end of the spectrum. The faster the object is travelling away, the greater degree of redshift. All galaxies (beyond our local group of galaxies) show redshift, which indicates that the Universe as a whole is expanding. Redshift applies to radio waves, and other wavelengths, as well as to light. It is a special case of the Doppler shift.
the apparent shift in a spectrum of light coming from a star or distant galaxy to the red end. Red shifts indicate that an object is moving away.
The lengthening of the wavelength of electromagnetic radiation resulting from one or more of three causes: Doppler redshift: resulting from bodies moving away from each other in space. Gravitational redshift: resulting from strong gravitational fields. Cosmological redshift: resulting from the expansion of space-time itself.
lowered frequency of light from a source receding from the observation point (such as a star or galaxy moving away from Earth) as a result of the Doppler effect
a shift in electromagnetic radiation towards the red (or longer end of the spectrum) which is the result of movement away from the observer
The lengthening of the wavelength of electromagnetic radiation caused by relative motion between source and observer. Spectral lines are red-shifted from distant galaxies, indicating that the galaxies are moving away from us due to the expansion of the Universe.
Light from an object that is moving away from an observer is shifted toward the red or longer wavelength end of the spectum relative to the light emitted at the source of the object. The fact that stars inside and outside of our galaxy predominantly show a red shift is evidence that the universe is expanding.
The stretching of waves of electromagnetic radiation. The shift of a spectrum to longer wavelengths. A red shifted spectrum is a predicted effect of the cosmological paradigm. The existence and degree of a red shift in GRB spectra is controversial.
An increase in the wavelength of the radiation received from a receding celestial body as a consequence of the Doppler effect; a shift towards the long-wavelength (red) end of the spectrum.
A displacement of emission or absorption line patterns toward the red end of the spectrum as a result of the Doppler effect. As a star travels away from an observer, the wavelength of the star light increases. The observer sees the star as "redder" than the same star at rest, and the magnitude of the shift corresponds to the velocity of the source. Astronomers use red shifts, among many other things, to study the expansion of the universe.
The Doppler lengthening of the wavelength of radiation (or the shifting of spectral lines toward longer wavelengths) caused by some net motion of recession with respect to the observer.
The phenomenon in which a source of light moving away from you very rapidly shifts to a lower frequency; that is, toward the red end of the spectrum.
Shift of spectral lines toward the red end of the spectrum, indicating motion away from the observer in the lines of sight
The red shift is an increase in the wavelength of the light that is emitted from an object that is moving away from us. This increase in wavelength makes the object appear to be redder than it actually is. For example, when a star is travelling away from Earth, its light appears redder (the light waves are elongated, lengthening the wavelength). The expansion of the universe was discovered when E. Hubble observed that the light from almost all other galaxies was red-shifted. Compare with blue shift.
Red Shift (1973) is a fantasy novel by Alan Garner. It spans over a thousand years but one geographical area: Southern Cheshire, England. Garner evokes the essence of place, allowing his characters to echo each other through time, as if their destinies may be predefined by the soil on which they walk.
Red Shift is a fictional supervillain in the Marvel Comics universe and was a herald of Galactus. He first appeared in Galactus: The Devourer (1999).