Higher Order Corrections in Gravitational Microlensing
arXiv:astro-ph/9902373 · doi:10.1016/S0375-9601(99)00121-8
Abstract
We show that, in cosmological microlensing, corrections of order , to the deflection angle of light beams from a distant source are not negligible and that all microlensing quantities should be corrected up to this order independently of the cosmological model used.
10 pages, LATEX, to appear in Phys. Lett. A
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