Polarization profiles for selected microlensing events towards the galactic bulge
Astrophysics of Galaxies
2013-04-23 v1 Solar and Stellar Astrophysics
Abstract
Gravitational microlensing, in case of relevant finite source size effects, provides an unique tool for the study of stellar atmospheres through the enhancement of a characteristic polarization signal. Here, we consider a set of highly magnified events and show that for different types of source stars (as hot, late type main sequence and cool giants) showing that the polarization strength may be of percent for late type stars and up to a few percent for cool giants.
Cite
@article{arxiv.1304.5877,
title = {Polarization profiles for selected microlensing events towards the galactic bulge},
author = {A. A. Nucita and G. Ingrosso and F. De Paolis and F. Strafella and S. Calchi-Novati and Ph. Jetzer and A. F. Zakharov},
journal= {arXiv preprint arXiv:1304.5877},
year = {2013}
}
Comments
Paper to appear in the proceedings of the Thirteenth Marcel Grossmann Meeting (Stockholm, Sweden July 1 - 7, 2012). Two pages