On calculation of microlensing light curve by gravitational lens caustic

Details On calculation of microlensing light curve by gravitational lens caustic On calculation of microlensing light curve by gravitational lens caustic

2001-02-02

arxiv.org/abs/astro-ph/0102031v1

Astronomy and Astrophysics

Astrophysics

6 pages, LaTeX

Scientific paper

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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