The specific physical character of the expansion of the universe

Details The specific physical character of the expansion of the universe The specific physical character of the expansion of the universe

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.111..103v&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 111, no. 1, April 1985, p. 103-121.

Astronomy and Astrophysics

Astrophysics

4

Background Radiation, Cosmology, Doppler Effect, Expansion, Red Shift, Universe, Gravitation Theory, Hubble Constant, Radial Velocity, Relativity

Scientific paper

Models of a spherical closed Friedmann universe are discussed. The classical model, the generally conformally expansive model, the superexpansive model, and the biexpansive model are addressed. The latter model superposes a hidden expansion due to the change in the rate of cosmic time on the generally known expansion, and has bearing on the existence of voids in the universe. The hidden expansion is described as a 'motion' in a spatial dimension orthogonal to known space. Some characteristic properties of this motion compatible with special and general relativity are discussed, and the force retarding the expansion and the concepts of contemporaneity and distance in cosmology are considered.

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