Can Solar System observations tell us something about the cosmological constant?

Details Can Solar System observations tell us something about the cosmological constant? Can Solar System observations tell us something about the cosmological constant?

2005-11-25

arxiv.org/abs/gr-qc/0511137v3

Int.J.Mod.Phys. D15 (2006) 473-476

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex2e, 4 pages, 2 table, no figures, 11 references. Table 2 added, typos in the units of Lambda corrected

Scientific paper

10.1142/S021827180600819X

In this note we show that the latest determinations of the residual Mercury's perihelion advance, obtained by accounting for almost all known Newtonian and post-Newtonian orbital effects, yields only very broad constraints on the cosmological constant. Indeed, from \delta\dot\omega=-0.0036 + - 0.0050 arcseconds per century one gets -2 10^-34 km^-2 < Lambda < 4 10^-35 km^-2. The currently accepted value for Lambda, obtained from many independent cosmological and large-scale measurements, amounts to almost 10^-46 km^-2.

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