The Absorbers Toward CSO 118: Superclustering at {z~3}, or an Intrinsic Absorption Complex?

Details The Absorbers Toward CSO 118: Superclustering at {z~3}, or an Intrinsic Absorption Complex? The Absorbers Toward CSO 118: Superclustering at {z~3}, or an Intrinsic Absorption Complex?

2001-05-04

arxiv.org/abs/astro-ph/0105088v1

Astronomy and Astrophysics

Astrophysics

12 pages total, 2 tables, 2 figures, accepted for publication in ApJ Letters

Scientific paper

10.1086/320690

We present two low resolution (R~1300) high signal-to-noise spectra (Wr,lim~50mA) of the quasar CSO 118 (zem=2.97) taken with the Hobby-Eberly Telescope Marcario Low Resolution Spectrograph. We detect eight absorbers selected by the CIV 1548,1550 absorption doublet in the redshift range {2.23 < zabs < 2.97}, seven of which are zabs > 2.68. In the redshift range covered by the seven zabs > 2.68 systems, one expects to find two absorbers. We discuss possible explanations for such an excess of absorbers in a small velocity range. Only superclustering at high redshift and absorption due to intrinsic gas are feasibly allowed.

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