Skip to content

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

Lorenzo Iorio

gr-qcarXiv:gr-qc/0511137

Abstract

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 δω=-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.

Create a lesson