Measurements of the Solar Gravitational Deflection of Radio Waves in Agreement with General Relativity

E. B. Fomalont and R. A. Sramek
Phys. Rev. Lett. 36, 1475 – Published 21 June 1976
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Abstract

In two experiments in 1974 and 1975, utilizing a radio interferometer of 35-km base-line, the relative positions of three radio sources were monitored over a period of a month when the sun was within 10 deg of the sources. The mean gravitational deflection is 1.007 ± 0.009 (standard error) times the value predicted by general relativity. These results exclude the Brans-Dicke theory of gravitation with a scalar coupling constant ω<23 at the 99% confidence level.

  • Received 12 January 1976

DOI:https://doi.org/10.1103/PhysRevLett.36.1475

©1976 American Physical Society

Authors & Affiliations

E. B. Fomalont*

  • National Radio Astronomy Observatory, Green Bank, West Virginia 24944

R. A. Sramek

  • National Astronomy and Ionosphere Center, Arecibo, Puerto Rico

  • *Operated by Associated Universities, Inc., under contract with the National Science Foundation.

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Issue

Vol. 36, Iss. 25 — 21 June 1976

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