Limits on Intergalactic Dust During Reionization
Cosmology and Nongalactic Astrophysics
2016-01-13 v1 Astrophysics of Galaxies
Abstract
In this Letter, we constrain the dust-to-gas ratio in the intergalactic medium (IGM) at high redshifts. We employ models for dust in the local Universe to contrain the dust-to-gas ratio during the epoch of reionization at redshifts z ~ 6-10. The observed level of reddening of high redshift galaxies implies that the IGM was enriched to an intergalactic dust-to-gas ratio of less than 3% of the Milky Way value by a redshift of z=10.
Keywords
Cite
@article{arxiv.1510.07047,
title = {Limits on Intergalactic Dust During Reionization},
author = {Nia Imara and Abraham Loeb},
journal= {arXiv preprint arXiv:1510.07047},
year = {2016}
}
Comments
4 pages; 2 figures; submitted to ApJ Letters