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

Rajib Ganguly·Jane C. Charlton·Nicholas A. Bond
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Abstract

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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Rajib Ganguly, Jane C. Charlton, Nicholas A. Bond. 2001-05-04. The Absorbers Toward CSO 118: Superclustering at {z~3}, or an Intrinsic Absorption Complex?. https://doi.org/10.1086/320690

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