Real-time Detection of Gravitational Microlensing
Abstract
Real-time detection of microlensing has moved from proof of concept in 1994 to a steady stream of events this year. Global dissemination of these events by the MACHO and OGLE collaborations has made possible intensive photometric and spectroscopic followup from widely dispersed sites confirming the microlensing hypothesis. Improved photometry and increased temporal resolution from followup observations greatly increases the possibility of detecting deviations from the standard point-source, point-lens, inertial motion microlensing model. These deviations are crucial in understanding individual lensing systems by breaking the degeneracy between lens mass, position and velocity. We report here on GMAN (Global Microlensing Alert Network), the coordinated followup of MACHO alerts.
Cite
@article{arxiv.astro-ph/9508039,
title = {Real-time Detection of Gravitational Microlensing},
author = {M. R. Pratt and C. Alcock and R. A. Allsman and D. Alves and T. S. Axelrod and A. Becker and D. P. Bennett and K. H. Cook and K. C. Freeman and K. Griest and J. Guern and M. Lehner and S. L. Marshall and B. A. Peterson and P. J. Quinn and D. Reiss and A. W. Rodgers and C. Stubbs and W. Sutherland and D. Welch},
journal= {arXiv preprint arXiv:astro-ph/9508039},
year = {2019}
}
Comments
6 pages, uuencoded compressed postscript, to appear int the Proceedings of the IAU Symposium 173: "Astrophysical Applications of Gravitational Lensing'', Kluwer Academic Publishers, Eds.: C. S. Kochanek and J. N. Hewitt