Alternative theories of gravity have been proposed to explain the acceleration of the Universe without Λ-term or Dark Energy (DE) and the flatness of the rotation curves of galaxies without Dark Matter (DM). Really, such kind of theories (so-called fourth-order gravity, in particular) were quite successful to fit several cosmological tests. In the present paper it is shown that Solar System data (in particular planetary periods and light bending in the solar limb) put strong constraints on the parameters of this theory making it not so attracting.
Solar System constraints on alternative theories of gravity
MARUCCIA Y;DE PAOLIS, Francesco;INGROSSO, Gabriele;NUCITA, Achille
2007-01-01
Abstract
Alternative theories of gravity have been proposed to explain the acceleration of the Universe without Λ-term or Dark Energy (DE) and the flatness of the rotation curves of galaxies without Dark Matter (DM). Really, such kind of theories (so-called fourth-order gravity, in particular) were quite successful to fit several cosmological tests. In the present paper it is shown that Solar System data (in particular planetary periods and light bending in the solar limb) put strong constraints on the parameters of this theory making it not so attracting.File in questo prodotto:
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