Variable polarisation and luminosity for microlensing of extended stellar sources
J.F.L. Simmons, A.M. Newsam, J.P. Willis
TL;DR
This paper explores how microlensing of extended stars by low-mass lenses causes variable polarisation and flux changes, offering insights into lens geometry and dark matter composition.
Contribution
It introduces the analysis of polarisation and luminosity variations in microlensing events of extended stellar sources, highlighting their potential to reveal lens characteristics.
Findings
Polarisation varies during microlensing events.
Flux profiles contain information about lens geometry.
Potential to identify low-mass dark matter objects.
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.
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