# Limits on dark matter and cosmological constant from solar system dynamics - Zurich Open Repository and Archive

Jetzer, P; Sereno, M (2009). Limits on dark matter and cosmological constant from solar system dynamics. In: Pécontal, E; Buchert, T; Di Stefano, P; Copin, Y. Dark energy and dark matter: Observations, experiments and theories. Les Ulis, FR: EDP Sciences, 127-132.

## Abstract

We discuss the influence of the cosmological constant $\Lambda$ on the solar system dynamics. Observational constraints are derived from measurements of the periastron advance of the planets. Moreover, we consider the change in the mean motion due to $\Lambda$. Up to now, Earth and Mars data give the best constraint, $\Lambda~\sim~10^~\mathrm{km}^$. If properly accounting for the gravito-magnetic effect, this upper limit on $\Lambda$ could greatly improve in the near future thanks to new data from planned or already operating space-missions. Dark matter or modifications of the Newtonian inverse-square law in the solar system are discussed as well. Variations in the 1/r2 behavior are considered in the form of either a possible Yukawa-like interaction or a modification of gravity of MOND type.

## Abstract

We discuss the influence of the cosmological constant $\Lambda$ on the solar system dynamics. Observational constraints are derived from measurements of the periastron advance of the planets. Moreover, we consider the change in the mean motion due to $\Lambda$. Up to now, Earth and Mars data give the best constraint, $\Lambda~\sim~10^~\mathrm{km}^$. If properly accounting for the gravito-magnetic effect, this upper limit on $\Lambda$ could greatly improve in the near future thanks to new data from planned or already operating space-missions. Dark matter or modifications of the Newtonian inverse-square law in the solar system are discussed as well. Variations in the 1/r2 behavior are considered in the form of either a possible Yukawa-like interaction or a modification of gravity of MOND type.

## Additional indexing

Item Type: Book Section, not refereed, original work 07 Faculty of Science > Institute for Computational Science 530 Physics English 2009 27 Feb 2010 15:50 05 Apr 2016 13:56 EDP Sciences EAS Publications Series 36 1633-4760 978-2-7598-0439-9 Conference on Dark Energy, Dark Matter - Observation, Experiments and Theories, Lyon, France, July 07-11, 2008 https://doi.org/10.1051/eas/0936017 http://opac.nebis.ch/F/?local_base=NEBIS&con_lng=GER&func=find-b&find_code=SYS&request=005821314

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