An independent test for the cosmological constant

Details An independent test for the cosmological constant An independent test for the cosmological constant

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pazh...16..901s&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 16, Oct. 1990, p. 901-908. In Russian. In Russian. In Russian.

Mathematics

Logic

Cosmology, Extragalactic Radio Sources, Intergalactic Media, Red Shift, Constants, Einstein Equations, Lyman Alpha Radiation, Quasars

Scientific paper

It is shown that the emission from high-redshift extragalactic objects, scattered by the intergalactic electron gas at angular distance theta, has, in comparison to directly observed light from the same quasars or galaxies, a redshift excess of Delta z greater than 0, which is sensitive only to the cosmological constant in the range absolute value of lambda = absolute value Omega0/2 - q0 not greater than 1, or absolute value of Lambda/c-squared not greater than 2 x 10 to the -56th (H0/75)/sq cm. The same holds for another version of the Delta z/theta test based on measurements of angular radii of L-alpha-voids around quasars with line-of-sight extensions Delta z.

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