ON THE (NON)EVOLUTION OF H I GAS IN GALAXIES OVER COSMIC TIME

@inproceedings{Prochaska2009ONT,
  title={ON THE (NON)EVOLUTION OF H I GAS IN GALAXIES OVER COSMIC TIME},
  author={J Xavier Prochaska and Arthur Michael Wolfe},
  year={2009}
}
We present new results on the frequency distribution of projected H I column densities f(N H I , X), total comoving covering fraction, and integrated mass densities ρH I of high-redshift, H I galactic gas from a survey of damped Lyα systems (DLAs) in the Sloan Digital Sky Survey, Data Release 5. For the full sample spanning z = 2.2-5 (738 DLAs), f(N H I , X) is well fitted by a double power law with a break column density Nd = 1021.55±0.04 cm-2 and low/high-end exponents α = –2.00 ± 0.05, – 6.4… CONTINUE READING

Similar Papers

Figures and Tables from this paper.

Citations

Publications citing this paper.
SHOWING 1-10 OF 11 CITATIONS

Outskirts of Distant Galaxies in Absorption

  • 2017
VIEW 11 EXCERPTS
CITES BACKGROUND
HIGHLY INFLUENCED