APSIS: AN ARTIFICIAL PLANETARY SYSTEM IN SPACE TO PROBE EXTRA-DIMENSIONAL GRAVITY AND MOND

VARUN SAHNI, YURI SHTANOV
2008 International Journal of Modern Physics D  
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,
more » ... f the perihelion shift of a "planet" can be measured to sub-arc-second accuracy. Some suggestions for spacecraft design are made.
doi:10.1142/s0218271808012127 fatcat:lumcvyaqnbdh7jurs7yfblewei