Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218..317n&link_type=abstract
Astrophysical Journal, Part 1, vol. 218, Dec. 1, 1977, p. 317-322.
Astronomy and Astrophysics
Astrophysics
1
Big Bang Cosmology, Parallax, Red Shift, Relativity, Universe, Antipodes, Curvature, Space-Time Functions
Scientific paper
The dependence of parallax on redshift is evaluated for homogeneous Friedmann universes, following a suggestion by Weinberg (1970) that space curvature might be evaluated thereby. Although the method is valid in principle, the only interesting variations in parallax are near the antipode in closed models. The prospects for seeking secular parallax for distant sources even in such models are poor unless the solar system's velocity through the microwave background exceeds Conklin's (1969) limit or it proves possible to use source structure resolved at less than 0.0001 arcsec over a long time base. An apparent discrepancy between Weinberg's (1973) and McCrea's (1935) values for parallax distance is resolved.
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