Galactic microlensing with rotating binaries
Abstract
The influence of rotating binary systems on the light curves of galactic microlensing events is studied. Three different rotating binary systems are discussed: a rotating binary lens, a rotating binary source, and the motion of the earth around the sun (parallax effect). The most dramatic effects arise from the motion of a binary lens because of the changes of the caustic structure with time. I discuss when the treatment of a microlensing event with a static binary model is appropriate. It is shown that additional constraints on the unknown physical quantities of the lens system arise from a fit with a rotating binary lens as well as from the earth-around-sun motion. For the DUO#2 event, a fit with a rotating binary lens is presented.
Cite
@article{arxiv.astro-ph/9702039,
title = {Galactic microlensing with rotating binaries},
author = {M. Dominik},
journal= {arXiv preprint arXiv:astro-ph/9702039},
year = {2014}
}
Comments
22 pages LaTeX2e format including 18 PostScript figures, uses "aa.cls"