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Perturbative analysis in planetary gravitational lensing

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arxiv astro-ph/9904297 v1 pith:IDGVQ4JT submitted 1999-04-22 astro-ph

Perturbative analysis in planetary gravitational lensing

classification astro-ph
keywords gravitationallensingperturbativeplanetaryplanetsanalysisanalyticalapplied
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The traditional perturbative method is applied to the case of gravitational lensing of planetary systems. A complete and detailed description of the structure of caustics for a system with an arbitrary number of planets can be obtained. I have also found precise analytical expressions for microlensing light curves perturbed by the presence of planets.

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