Authors: T. Bernal, S. Capozziello, J.C. Hidalgo, S. Mendoza
Date: 29 Aug 2011
Abstract: We show that the Modified Newtonian Dynamics (MOND) regime can be fully recovered as the weak-field limit of a particular theory of gravity formulated in the metric approach. This is possible when Milgrom's acceleration constant is taken as a fundamental quantity which couples to the theory in a very consistent manner. As a consequence, the scale invariance of the gravitational interaction is naturally broken. In this sense, Newtonian gravity is the weak-field limit of general relativity and MOND is the weak-field limit of that particular extended theory of gravity. We also prove that a Noether's symmetry approach to the problem yields a conserved quantity coherent with this relativistic MONDian extension.
© M. Vallisneri 2012 — last modified on 2010/01/29
Tantum in modicis, quantum in maximis