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On calculation of microlensing light curve by gravitational lens caustic

M. B. Bogdanov
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Abstract

For an analysis of microlensing observational data in case of binary gravitational lenses as well as for an interpretation of observations of high magnification events in multiple images of a lensed quasar it is necessary to calculate for a given source the microlensing light curve by a fold caustic. This problem comes to the numerical calculation of a singular integral. We formulated the sufficient condition of a convergence of the integral sum for this singular integral. The strictly approach to the problem of a comparison of model results with the unequally sampled observational data consists in calculation of the model light curve in equidistant points of the canonical dissection of the integration segment and a following interpolation of its values at the moments of observations.

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M. B. Bogdanov. 2001-02-02. On calculation of microlensing light curve by gravitational lens caustic. https://arxiv.org/abs/astro-ph/0102031

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