Gravitational microlensing as a test of a finite-width disk model of the Galaxy

preprint2012arXivOpen access

Abstract

The aim of this work is to show, in the framework of a simple finite-width disk model, that the amount of mass seen through gravitational microlensing measurements in the region 0<R<R00<R<R0 is consistent with the dynamical mass ascertained from Galaxy rotation after subtracting gas contribution. Since microlensing only detects compact objects, this result suggests that a non-baryonic mass component may be negligible in this region.

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