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arxiv: astro-ph/9303020 · v1 · submitted 1993-03-31 · 🌌 astro-ph · gr-qc

Null Geodesics in Perturbed Spacetimes

classification 🌌 astro-ph gr-qc
keywords approachesbackgroundbehaviorcalculationcharacterclarifiesdateformalism
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We present a generalization and refinement of the Sachs-Wolfe technique which unifies many of the approaches taken to date and clarifies both the physical and the mathematical character of the method. We illustrate the formalism with a calculation of the behavior of light passing a moving lens on a Minkowski background.

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