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Towards Understanding the Mass-Metallicity relation of Quasar Absorbers: Evidence for bimodality and consequences.

By Nicolas Bouché

Abstract

Among quasar (QSO) absorption line systems, damped Lyα absorbers (DLAs) with column densities N H I � 2 × 10 20 cm −2 are the most puzzling. Their high column density range indicates that they ought to trace cold neutral gas, hence disks (e.g. Wolfe et al

Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.313.6723
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