Newtonian and Post-Newtonian approximations of the k = 0 Friedmann Robertson Walker Cosmology

Details Newtonian and Post-Newtonian approximations of the k = 0 Friedmann Robertson Walker Cosmology Newtonian and Post-Newtonian approximations of the k = 0 Friedmann Robertson Walker Cosmology

1999-07-28

arxiv.org/abs/gr-qc/9907094v2

Gen.Rel.Grav. 32 (2000) 719-733

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, Latex, corrected typos

Scientific paper

In a previous paper we derived a post-Newtonian approximation to cosmology which, in contrast to former Newtonian and post-Newtonian cosmological theories, has a well-posed initial value problem. In this paper, this new post-Newtonian theory is compared with the fully general relativistic theory, in the context of the k = 0 Friedmann Robertson Walker cosmologies. It is found that the post-Newtonian theory reproduces the results of its general relativistic counterpart, whilst the Newtonian theory does not.

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