Abstract
We examine whether a charge supported statically in a gravitational field radiates, and find the answer to this question to be positive. Based on our earlier results we find that the important condition for the creation of radiation is the existence of a relative acceleration between the charge and its electric field, where such an acceleration causes the curving of the electric field and the creation of a stress force due to this curvature. This stress force is the reaction force, which creates the radiation. Later we find that this condition do exist for a charge supported statically in a gravitational field, where the electric field of the charge falls in the gravitational field, it curves, and the stress force raised in this curved field, creates electromagnetic radiation.
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Soker, N., Harpaz, A. Radiation from a Charge Supported in a Gravitational Field. General Relativity and Gravitation 36, 315–330 (2004). https://doi.org/10.1023/B:GERG.0000010478.00884.f8
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DOI: https://doi.org/10.1023/B:GERG.0000010478.00884.f8