cosmological redshift


Also found in: Dictionary, Thesaurus, Wikipedia.
Related to cosmological redshift: Gravitational redshift

cosmological redshift

The redshift resulting from the expansion of the Universe rather than from gravitational effects of intervening matter (see gravitational redshift) or from the motion of an intragalactic object away from the Solar System. See also cosmic scale factor.

cosmological redshift

[¦käz·mə¦läj·ə·kəl ′red‚shift]
(astronomy)
The red shift that can be ascribed entirely to the general expansion of space-time initiated by the big bang.
Mentioned in ?
References in periodicals archive ?
Lemaitre deduced the cosmological redshift on the basis of Einstein's field equation.
under the assumption that the cosmological redshift is a result of the Doppler effect in an expanding space.
Observations of galaxies and distributions of galaxies are beginning to suggest conflicts with the standard concept of an expanding Universe and its interpretation of a high-z redshift as a cosmological redshift.
There is no need for expansion of space and its cosmological redshift to explain the SNe1a data.
The energy loss of photons and cosmological redshift.
Our model is inspired by the tired-light theory that was first proposed by [1] to explain cosmological redshifts, which has been subject to other investigations [2-4].
Finally, the evolutionary model of the scale factor is derived and matched to the cosmological redshift equation in order to obtain the LTD versus redshift equation.
Two approaches are available for converting the redshifts from observed galaxies into LTDs, one based on cosmological redshifts and the other one on dopplerian redshifts.
On the basis of this test, we conclude that the dichotomous cosmology provides an accurate description of the physics underlying cosmological redshifts.