H i as a probe of the large-scale structure in the post-reionization universe

• Published in: Monthly notices of the Royal Astronomical Society Vol. 407; no. 1; pp. 567 - 580
• Main Authors: Bagla, J. S., Khandai, Nishikanta, Datta, Kanan K.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.09.2010; Wiley-Blackwell; Oxford University Press
• Subjects: Arrays; Astronomi; Astronomi och astrofysik; Astronomy; Astronomy and astrophysics; Astrophysics; Computer simulation; Correlation; Earth, ocean, space; Exact sciences and technology; Fysik; galaxies: evolution; galaxies: ISM; Hydrogen; large-scale structure of Universe; Mathematical analysis; Mathematical models; methods: numerical; NATURAL SCIENCES; NATURVETENSKAP; Physics; radio lines: galaxies; Radio telescopes; Small scale; Star & galaxy formation; Stars & galaxies; Universe; Visibility; radio lines: galaxies; methods: numerical; galaxies: evolution; galaxies: ISM; large-scale structure of Universe; Galaxy evolution; Red shift; Fluctuations; Galaxies; Radio galaxies; Power spectra; Digital simulation; N body system; Probability distribution; Numerical method; Large-scale structure; Neutral hydrogen; Theoretical model; Dark matter; Correlations; Cosmic radio sources; Visibility; Gravity

We model the distribution of neutral hydrogen (H i) in the post-reionization universe. This model uses gravity-only N-body simulations and an ansatz to assign H i to dark matter haloes that is consistent with observational constraints and theoretical models. We resolve the smallest haloes that are l...