Detection of non-Newtonian gravity

Journal Article · Fri Feb 10 04:00:00 EST 1989 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JB094iB02p01563· OSTI ID:6192037

Romaides, A J; Jekeli, C; Lazarewicz, A R; Eckhardt, D H; Sands, R W

An experiment was performed to test Newton's inverse square of law gravitation. The test compared accurately measured gravity values along a 600-m tower with upward continued gravity estimates calculated from ground measurements using algorithms based on Newtonian potential theory. Gravity measurements with an internal consistency of better than 20 ..mu..Gal (1 ..mu..Gal = 10/sup -8/ m/s/sup 2/) were made on the tower at intervals of about 90 m using a single LaCoste-Romberg model G gravimeter. Field measurements of gravity (using the same instrument) and corresponding geodetic positions were performed at 77 points within a radius of 5 km from the tower. These and other gravimetric data within a radius of about 220 km were used to perform the upward continuation using two independent computational techniques. One is least squares collocation, which is based on a statistical interpretation of the local gravity field, and the other determines a local harmonic expansion on the field from the given data.

• Research Organization: Air Force Geophysics Laboratory, Hanscom AFB, Massachusetts
• OSTI ID: 6192037
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 94:B2; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMPTOTIC SOLUTIONS
COMPUTER CALCULATIONS
GRAVIMETRY
GRAVITATION
LEAST SQUARE FIT
MAXIMUM-LIKELIHOOD FIT
NUMERICAL SOLUTION
TESTING