Variable polarisation and luminosity for microlensing of extended stellar sources

Abstract

Microlensing of extended stellar sources in the LMC and Galaxy by low mass lenses can produce variable polarisation. The characteristics of the polarisation and flux profiles can provide considerable information about the lens geometry, and help determine the importance of such low mass objects as a dark matter component.

9 pages, uuencoded, compressed, tarred PostScript (self-unpacking). Includes 13 figures. Also available from URL: http://sousun1.phys.soton.ac.uk/~amn/papers/gravyMN/ (includes LaTeX document and separate figures)

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