Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-11-04
Astronomy and Astrophysics
Astrophysics
Contribution to the Manchester Microlensing Conference (Jan. 2008). 5 figures, 20 pages. This version supersedes the conferenc
Scientific paper
The basic concepts of gravitational microlensing are introduced. We start
with the lens equation, and then derive the image positions and magnifications.
The statistical quantities of optical depth and event rate are then described.
We finish with a summary and a list of challenges and open questions. A problem
set is given for students to practice.
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