Limits on Intergalactic Dust During Reionization

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.

4 pages; 2 figures; submitted to ApJ Letters

References in corpus (6)

• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• A dusty, normal galaxy in the epoch of reionization
• Simulating cosmic metal enrichment by the first galaxies
• The Enrichment History of Baryons in the Universe
• The Impact of Cosmic Dust on Supernova Cosmology
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Cited by in corpus (8)

• The impact of chemistry on the structure of high-z galaxies
• Crucial Physical Dependencies of the Core-Collapse Supernova Mechanism
• CO line emission from galaxies in the Epoch of Reionization
• Lyα emission from galaxies in the Epoch of Reionization
• The Distortion of the Cosmic Microwave Background Spectrum Due to Intergalactic Dust
• Cosmic transparency and acceleration
• Universe opacity and EBL
• Missing dust signature in the cosmic microwave background