| THE ASTROPHYSICAL JOURNAL, 549 9099, 2001 March 1 (2007) | |||||||||||||||
Abstract | |||||||||||||||
| The UV resonance transitions of neutral argon, Ar I j1066, and of singly ionized phosphorus, P II j963, originated in the damped Lya system (DLA) at toward QSO 0000[2620, have been z \ 3.3901 detected by means of the Ultraviolet-Visual Echelle Spectrograph (UVES) spectrograph at the 8.2 m ESO KUEYEN telescope. So far, this is the rst measurement of Ar I and the second of P II ever performed in damped galaxies and in high-redshift objects. This DLA is well known for having one of the lowest metal abundances and dust content and the lowest fractional abundance of molecular hydrogen The measured Ar abundance is [Ar/H] \[1.91^ 0.09, which is equal to the abundances of the H . | |||||||||||||||
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