Damped Lyman systems and disc galaxies: number density, column density distribution and gas density
نویسندگان
چکیده
منابع مشابه
Self-shielding Effects on the Column Density Distribution of Damped Lyman Alpha Systems
We calculate the column density distribution of damped Lyα systems, modeled as spherical isothermal gaseous halos ionized by the external cosmic background. The effects of self-shielding introduce a hump in this distribution, at a column density NHI ∼ 1.6 × 10X cm, where X is the neutral fraction at the radius where self-shielding starts being important. The most recent compilation of the colum...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2003
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2003.06023.x