The microlensing events in Q2237+0305A: No case against small masses/large sources
Abstract
It is demonstrated that the 1988-90 microlensing events in image A of Q2237+0305 reported by Racine (1992) do not exclude microlensing models with very low average mass, making the source radius larger than the projected Einstein radius (Refsdal and Stabell 1991, 1993). This is contrary to what has been claimed by Witt and Mao (1994). Since these events are the best resolved microlensing events recorded in Q2237+0305, further work should not exclude the possibility of a large source when interpreting lightcurve data.
Cite
@article{arxiv.astro-ph/9508103,
title = {The microlensing events in Q2237+0305A: No case against small masses/large sources},
author = {S. V. H. Haugan},
journal= {arXiv preprint arXiv:astro-ph/9508103},
year = {2007}
}
Comments
2 pages, 1 figure. Uses crckapb.sty. To appear in the Proceedings of the IAU Symposium 173: ``Astrophysical Applications of Gravitational Lensing'', Kluwer Academic Publishers, Eds.: C. S. Kochanek and J. N. Hewitt. Also available through http://www.uio.no/~steinhh/index.html