Paper:	The New Era of Precision Microlensing
Volume:	289, The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume I
Page:	453
Authors:	Gould, A.
Abstract:	In the past few years, microlensing has entered a new era of high-precision observations, which require equally precise interpretation. Very high quality data has enabled the measurement of the detailed surface structure of stars and even the mass of an individual microlens. Future observations using the Space Interferometry Mission (SIM), with its 4 micro arcsecond astrometric precision, will permit the measurement of hundreds of microlens masses, thus enabling for the first time a determination of the mass function of all objects in the Galactic bulge, both dark and luminous. SIM microlensing observations will also yield 1% mass measurements of non-binary stars, the first other than the Sun.

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