Large-Scale Structure at Z ~ 2

Details Large-Scale Structure at Z ~ 2 Large-Scale Structure at Z ~ 2

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.7110w&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #71.10; Bulletin of the American Astronomical Society, Vol. 25, p.1399

Statistics

Scientific paper

We report the first results from our program of 2 Angstroms resolution spectroscopy of intervening C IV absorbers in a ~ 1 deg(2) QSO field near the South Galactic Pole. This region has several times the normal surface density of z>1.5 QSOs (suitable for C IV studies), offering a particularly good opportunity to explore large-scale structure at high redshift using QSO absorption systems. From our spectra of 11 QSOs with m_J <= 19.7 and 1.7 ~ lt z ~ lt 3.4, we confirmed 11 new C IV systems with rest equivalent width WCIV>0.15 Angstroms . The total number of intervening absorbers detected for this threshold is consistent with what is expected from C IV absorber statistics. However, there is some evidence at the 2.4sigma level that the absorbers may be grouped along the line of sight on the 10-40 Mpc scale. We have subsequently observed a further five bright, high redshift QSOs in the region and expect to reach a statistically conclusive answer to the question of whether there is any such superclustering at high redshift in this direction.

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