redshift

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  • noun

Synonyms for redshift

(astronomy) a shift in the spectra of very distant galaxies toward longer wavelengths (toward the red end of the spectrum)

References in periodicals archive ?
Assuming the universe's expansion had redshifted the light, this redshift translated to a distance of 2 billion light-years.
If all masses were once lower, and have been constantly increasing, the colours of old galaxies will look redshifted in comparison to current frequencies, and the amount of redshift is going to be proportionate to their distances from Earth.
Light from a source object is redshifted because the time interval or scale factor is increased.
To detect a galaxy at a given distance from Earth, Lyman-alpha surveys require the detection of but a single redshifted wavelength of light emitted by hydrogen atoms.
There are two problems: the first galaxies are too faint for Hubble or any existing telescope, and cosmic expansion has redshifted their visible light even beyond Hubble's new near-infrared capability.
Distant redshifted SNe1a light sources from the Universe that are usually interpreted as cosmological redshifts are shown to be universal gravitational redshifts seen by all observers in the quantum celestial mechanics (QCM) approach to cosmology.
Astronomers use the degree to which a celestial object's light has redshifted to calculate distance.
Just as a train whistle is Doppler shifted to a lower tone as it passes by, a celestial object's light is redshifted to longer wavelengths as it recedes.
Observed: The whole quasar or galaxy is intrinsically redshifted.
To look for galaxies that reside at particular distances, astronomers pick filters designed to detect specific redshifted Lyman-alpha emissions.
suggests diffuse hydrogen in superclusters between us and the quasars as the source of these features, which are generally less redshifted than the Lyman-alpha emission line.
Viewed from Earth, infrared light emitted by a galaxy some 13 billion light-years distant gets redshifted to much longer wavelengths -- into the radio region of the electromagnetic spectrum.
The galaxy is so distant that it doesn't even show up in visible light, presumably because the expansion of the universe has redshifted its visible light into the infrared part of the spectrum, and because much of its light is absorbed by neutral hydrogen gas en route to Earth.
That discrepancy could have an intriguing explanation: The red galaxies have a structure identical to that of nearby ellipticals, yet they may lie so far away that the visible light they emit has been stretched, or redshifted, to the infrared.