Physics
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..67.2123g&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 67, Oct. 14, 1991, p. 2123-2126. Research supported by NSERC.
Physics
21
Depolarization, Gravitation Theory, Line Spectra, Solar Gravitation, Solar Limb, Solar Spectra, Electromagnetic Fields, Gravitational Fields, Zeeman Effect
Scientific paper
It is shown that theories which couple the antisymmetric part of a nonsymmetric-tensor gravitational field to the electromagnetic field predict a depolarization of the Zeeman components of spectral lines emitted by extended, magnetically active regions near the limb of the sun. This new effect is a consequence of the violation of the Einstein equivalence principle by these nonsymmetric alternatives to general relativity. It is shown that existing solar-physics data limit the extent of such depolarization and imply that the sun's antisymmetric charge must be less than (535 km)-squared in Moffat's theory, the prototypical nonsymmetric theory of gravity.
Gabriel Marcus D.
Haugan Mark P.
Mann Robert B.
Palmer Jody H.
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