SIMBAD references

2001ApJ...553L.101G - Astrophys. J., 553, L101-L104 (2001/June-1)

The absorbers toward CSO 118: superclustering at z∼3, or an intrinsic absorption complex?


Abstract (from CDS):

We present two low-resolution (R∼1300) high signal-to-noise ratio spectra (Wr,lim~50 mÅ) 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 C IV λλ1548, 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.

Abstract Copyright:

Journal keyword(s): Galaxies: Quasars: Absorption Lines - quasars: individual (CSO 118)

CDS comments: p. L103 : Q0835+5803 is QSO 0835+5804

Simbad objects: 16

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