Exoplanetary searches with gravitational microlensing: polarization issues
Abstract
There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the potentiality of detecting Earth-like planets at distances about a few astronomical units from their host star or near the so-called snow line with a temperature in the range C on a solid surface of an exoplanet. We emphasize the importance of polarization measurements which can help to resolve degeneracies in theoretical models. In particular, the polarization angle could give additional information about the relative position of the lens with respect to the source.
Cite
@article{arxiv.1312.3468,
title = {Exoplanetary searches with gravitational microlensing: polarization issues},
author = {A. F. Zakharov and G. Ingrosso and F. De Paolis and A. A. Nucita and F. Strafella and S. Calchi Novati and Ph. Jetzer},
journal= {arXiv preprint arXiv:1312.3468},
year = {2015}
}
Comments
17 pages, 3 figures, presented at the IX Serbian Conference on Spectral Lines in Astrophysics and the COST Action MP1104 "Polarization as a tool to study the Solar System and beyond", accepted for publication in Advances in Space Research