Publication: Limits on Intergalactic Dust During Reionization
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Date
2016
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American Astronomical Society
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Imara, N., and A. Loeb. 2016. “Limits on Intergalactic Dust During Reionization.” The Astrophysical Journal 816 (1) (January 1): L16. doi:10.3847/2041-8205/816/1/l16.
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.
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intergalactic medium, galaxies: high-redshift, dust, extinction, cosmology: dark ages, reionization, first stars
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