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arXiv · gr-qc/9709034

Thompson Scattering in an Expanding Universe

James L. Anderson
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Abstract

The Thompson cross section for scattering of electromagnetic waves by a free electron in an expanding universe is derived here. The equations of motion of the electron are obtained using the Einstein-Infeld-Hoffmann (EIH) surface integral method. These integrals are evaluated approximately by perturbing off an Einstein-deSitter cosmological field. It is found that the Thompson cross section varies with time as the inverse square of the cosmic scale factor R(t).

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James L. Anderson. 1997-09-14. Thompson Scattering in an Expanding Universe. https://arxiv.org/abs/gr-qc/9709034

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