Evidence for a low-density inflationary universe?

Details Evidence for a low-density inflationary universe? Evidence for a low-density inflationary universe?

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.136...11o&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 136, no. 1, Aug. 1987, p. 11-15.

Astronomy and Astrophysics

Astronomy

1

Cosmology, Radio Sources (Astronomy), Universe, Astronomical Models, Red Shift

Scientific paper

The inflationary universe model predicts the density parameter Ω0 to be ≡1.0 with the cosmological constant Λ0 usually taken to be zero, whereas observational estimates give Ω0 ≤ 0.2 and Λ0 ≡ 10-57cm-2. It was found, however, that the observed variation of angular diameter with redshift for extragalactic radio sources could be interpreted in terms of a low density universe with linear size evolution of the sources for either an inflationary model with Λ ≠ 0 or an open model with Λ = 0.

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