APSIS - an Artificial Planetary System in Space to probe extra-dimensional gravity and MOND

Details APSIS - an Artificial Planetary System in Space to probe extra-dimensional gravity and MOND APSIS - an Artificial Planetary System in Space to probe extra-dimensional gravity and MOND

2006-06-14

arxiv.org/abs/gr-qc/0606063v4

Int.J.Mod.Phys.D17:453-466,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, revtex, references added. To appear in Special issue of IJMPD

Scientific paper

10.1142/S0218271808012127

A proposal is made to test Newton's inverse-square law using the perihelion shift of test masses (planets) in free fall within a spacecraft located at the Earth-Sun L2 point. Such an Artificial Planetary System In Space (APSIS) will operate in a drag-free environment with controlled experimental conditions and minimal interference from terrestrial sources of contamination. We demonstrate that such a space experiment can probe the presence of a "hidden" fifth dimension on the scale of a micron, if the perihelion shift of a "planet" can be measured to sub-arc-second accuracy. Some suggestions for spacecraft design are made.

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