Bound on the Dark Matter Density in the Solar System from Planetary Motions

Abstract

High precision planet orbital data extracted from direct observation, spacecraft explorations and laser ranging techniques enable to put a strong constraint on the maximal dark matter density of a spherical halo centered around the Sun. The maximal density at Earth's location is of the order $10^5$ $GeV/c{\mathrm{m}}^3$ and shows only a mild dependence on the slope of the halo profile, taken between 0 and -2. This bound is somewhat better than that obtained from the perihelion precession limits.

7 pages, 1 figure

References in corpus (3)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Dark matter vs. modifications of the gravitational inverse-square law. Results from planetary motion in the solar system
• Solar System planetary orbital motions and dark matter

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