Sky Distribution of the Neutral Hydrogen Gas (IMAGE)

National Institutes of Natural Sciences

Sky Distribution of the Neutral Hydrogen Gas

Caption

Sky distribution of the neutral hydrogen gas in the three fields studied in this work. While in the normal fields (SXDS and GOODS-N) the neutral hydrogen gas density is consistent with the average density in the entire universe at 11.5 billion years ago, the neutral hydrogen gas density is higher than the average over the entire SSA22 proto-supercluster field. Contours correspond to the galaxies� number density. Bold, solid thin, and dashed contours mean the average, high density, and low density regions, respectively.

Credit

Osaka Sangyo University / NAOJ

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