Gravitational Nanolensing from Subsolar Mass Dark Matter Halos
Cosmology and Nongalactic Astrophysics
2011-01-27 v2
Abstract
We investigate the feasibility of extracting the gravitational nanolensing signal due to the presence of subsolar mass halos within galaxy-sized dark matter halos. We show that subsolar mass halos in a lensing galaxy can cause strong nanolensing events with shorter durations and smaller amplitudes than microlensing events caused by stars. We develop techniques that can be used in future surveys such as Pan-STARRS, LSST and OMEGA to search for the nanolensing signal from subsolar mass halos.
Keywords
Cite
@article{arxiv.1008.2385,
title = {Gravitational Nanolensing from Subsolar Mass Dark Matter Halos},
author = {Jacqueline Chen and Savvas M. Koushiappas},
journal= {arXiv preprint arXiv:1008.2385},
year = {2011}
}
Comments
12 pages, 10 figures. Replaced with version accepted for publication in ApJ. Very minor changes from version 1