RECONSTRUCTION OF A SCALAR-TENSOR THEORY OF GRAVITY IN AN ACCELERATING UNIVERSE
D. POLARSKI
LMPT, UPRES-A 6083 CNRS, Univ. de Tours, Parc de Grandmont, 37200 Tours, France
DARC, Obs. de Meudon, F 92195 Meudon cedex, France


Abstract:
We consider a scalar tensor theory of gravity in which our universe is presently accelerating. We show how one can reconstruct the full theory - namely, the field potential and the functional form of the scalar-gravity coupling - along with the present density of dustlike matter using the following cosmological observations: luminosity distance data and linear dustlike matter density fluctuations data, both as functions of redshift.