Cosmological observations in scalar-tensor quintessence

By A. Riazuelo, Jean-Philippe Uzan. 2001

186 citations recorded by the source corpus.

The framework for considering the astronomical and cosmological observations in the context of scalar-tensor quintessence in which the quintessence field also accounts for a time dependence of the gravitational constant is developed. The constraints arising from nucleosynthesis, the variation of the constant, and the post-Newtonian measurements are taken into account. A simple model of supernovae is presented in order to extract the dependence of their light curves with the gravitational constant; this implies a correction when fitting the luminosity distance. The properties of perturbations as well as CMB anisotropies are also investigated.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/6c3c865e469944c8e1da97f74103d2bf0271a244

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In Astronomy and Astrophysics

Citations in the corpus

Modified Gravity and Cosmology (2011, background): “Theories of gravity with non-minimally coupled scalar fields and non-zero self-interaction potentials have been studied by a number of authors under the name ‘extended quintessence’ [1035, 74, 35, 1061, 1109].”
f(R) Theories (2010, background): “In fact the dynamics of dark energy in such a theory has been studied by a number of authors [22, 601, 151, 68, 491, 44, 505].”
The fundamental constants and their variation: observational and theoretical status (2002, background): “The most secure constraint arising from D/H measurements and combining with CMB data to determine ΩB gives ∆α EM /α EM = (3± 7)× 10−2 (135) at 1σ level.”
Varying Constants, Gravitation and Cosmology (2010, background): “, scalar-tensor theory [435] (the effect of the Fermi constant was also considered in [194]).”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, background): “Scalar–tensor theories (Wetterich 1988; Hwang 1990a, b; Damour et al. 1990; Casas et al. 1991, 1992; Wetterich 1995; Uzan 1999; Perrotta et al. 2000; Faraoni 2000; Boisseau et al. 2000; Riazuelo and Uzan 2002; Perrotta and Baccigalupi 2002; Schimd et al. 2005; Matarrese et al. 2004; Pettorino et al.”