Single metric universe I :Modified Newtonian Mechanics. (arXiv:1601.00376v6 [astro-ph.CO] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Wong_C/0/1/0/all/0/1">C. C. Wong</a> (U. of Hong Kong)
A few years ago Baker cite{baker} proposed a Lema$hat{i}$tre-Tolman metric
which could vary smoothly between the Schwarzschild metric at small scales and
the Friedmann-Robertson-Walker (FRW) metric at large scales. As it stands, by
implementing the Bona-Stela construction cite{bona} its predictions are
incompatible with solar system data. We find a different metric within the same
class which avoids this problem while introducing a MOND-like gravitational
acceleration which dominates Newtonian gravity for low central baryoinc
densities at early time, that can go some way to explain the growth rate of the
baryonic matter density perturbation and the enhancement of the higher CMB
acoustic peak anisotropies.
A few years ago Baker cite{baker} proposed a Lema$hat{i}$tre-Tolman metric
which could vary smoothly between the Schwarzschild metric at small scales and
the Friedmann-Robertson-Walker (FRW) metric at large scales. As it stands, by
implementing the Bona-Stela construction cite{bona} its predictions are
incompatible with solar system data. We find a different metric within the same
class which avoids this problem while introducing a MOND-like gravitational
acceleration which dominates Newtonian gravity for low central baryoinc
densities at early time, that can go some way to explain the growth rate of the
baryonic matter density perturbation and the enhancement of the higher CMB
acoustic peak anisotropies.
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