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The chemical compositions of 10 new sub-DLAs and strong Lyman-limit systems at z < 1.5
Joseph D. Meiring, Varsha P. Kulkarni, James T. Lauroesch +4
We present chemical abundance measurements from medium resolution observations of 8 sub-damped Lyman-alpha absorber and 2 strong Lyman-limit systems at z < 1.5 observed with the MI…
A Population of Faint Extended Line Emitters and the Host Galaxies of Optically Thick QSO Absorption Systems
Michael Rauch, Martin Haehnelt, Andrew Bunker +10
We have conducted a long slit search for low surface brightness Lyman-alpha emitters at redshift 2.67 < z < 3.75. A 92 hour long exposure with VLT/FORS2 down to a 1-sigma surface b…
The SINFONI MgII Program for Line Emitters (SIMPLE): Discovering starbursts near QSO sight-lines
Nicolas Bouche, Michael T. Murphy, Celine Peroux +4
Low-ionization transitions such as the MgII 2796/2803 doublet trace cold gas in the vicinity of galaxies. It is not clear whether this gas is part of the interstellar medium of lar…
A Homogeneous Sample of Sub-DLAs IV: Global Metallicity Evolution
Celine Peroux, Miroslava Dessauges-Zavadsky, Sandro D'Odorico +2
An accurate method to measure the abundance of high-redshift galaxies consists in the observation of absorbers along the line of sight toward a background quasar. Here, we present…
New abundance determinations in z < 1.5 QSO absorbers: seven sub-DLAs and one DLA
Joseph D. Meiring, James T. Lauroesch, Varsha P. Kulkarni +4
We present chemical abundance measurements from high resolution observations of 7 sub-damped Lyman-alpha absorbers and 1 damped Lyman-alpha system at z<1.5. Three of these objects…
The missing metals problem. III How many metals are expelled from galaxies?
Nicolas Bouche, Matthew D. Lehnert, Anthony Aguirre +2
[Abridged] We revisit the metal budget at z~2. In the first two papers of this series, we already showed that ~30% (to <60% if extrapolating the LF) of the metals are observed in a…