2008 (IPP)

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Author: search.filters.author.Sahni, VarunSubject: search.filters.subject.Artificial Planetary System in Space

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    APSIS - an Artificial Planetary System in Space to probe extra-dimensional gravity and MOND
    (2008-01) Sahni, Varun; Shtanov, Yuri
    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 dragfree 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.