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Column density distribution of galactic Ly-alpha absorption systems

Milan M. Cirkovic·Srdjan Samurovic
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Abstract

A simple consistency argument for hypothesis of the galactic halo origin of the Ly-alpha forest absorption lines is advanced, based on the recent determination of column-density vs. impact parameter relation for the low-redshift gaseous galactic haloes. It is shown that observations of neutral hydrogen absorption around luminous galaxies are consistent with the index of the power-law column density distribution derived from statistical analysis of large samples of high-redshift Ly-alpha forest lines.

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Milan M. Cirkovic, Srdjan Samurovic. 2001-08-15. Column density distribution of galactic Ly-alpha absorption systems. https://doi.org/10.1023/a%3A1002150321117

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