English

On calculation of microlensing light curve by gravitational lens caustic

Astrophysics 2007-05-23 v1

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.

Keywords

Cite

@article{arxiv.astro-ph/0102031,
  title  = {On calculation of microlensing light curve by gravitational lens caustic},
  author = {M. B. Bogdanov},
  journal= {arXiv preprint arXiv:astro-ph/0102031},
  year   = {2007}
}

Comments

6 pages, LaTeX