Statistical properties of damped Lyman-alpha systems from Sloan Digital Sky Survey DR12
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DOI: 10.1093/mnras/stw3246
Abstract: We present new estimates for the statistical properties of damped Lyman-$\alpha$ absorbers (DLAs). We compute the column density distribution function at $z>2$, the line density, $\mathrm{d}N/\mathrm{d}X$, and the neutral hydrogen density, $\Omega_\mathrm{DLA}$. Our estimates are… read more here.
Keywords: survey; damped lyman; density; lyman alpha ... See more keywords
Characterizing the circum-galactic medium of damped Lyman-α absorbing galaxies
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DOI: 10.1093/mnras/sty1287
Abstract: Gas flows in and out of galaxies through their circumgalactic medium (CGM) are poorly constrained and direct observations of this faint, diffuse medium remain challenging. We use a sample of five $z$ $\sim$ 1-2 galaxy… read more here.
Keywords: characterizing circum; medium; gas; damped lyman ... See more keywords
Sub-damped Lyman α systems in the XQ-100 survey – I. Identification and contribution to the cosmological H i budget
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DOI: 10.1093/mnras/stz2012
Abstract: Sub-damped Lyman α systems (subDLAs; H i column densities of 19.0 ≤ logN(H i) < 20.3) are rarely included in the cosmic H i census performed at redshifts zabs ≳ 1.5, yet are expected to contribute significantly to the overall H i… read more here.
Keywords: contribution; budget; damped lyman; sub damped ... See more keywords
[C ii] 158-μm emission from the host galaxies of damped Lyman-alpha systems
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DOI: 10.1126/science.aal1737
Abstract: Gas emission lines from damped Lyman-α systems probe galaxy evolution in the early universe. Identifying the hosts of quasar absorbers If the line of sight from Earth to a distant quasar passes through foreground material,… read more here.
Keywords: galaxies associated; emission host; 158 emission; gas ... See more keywords