A Survey for Intervening CIV Absorption-Line Systems Using SDSS Quasar Spectra

Details A Survey for Intervening CIV Absorption-Line Systems Using SDSS Quasar Spectra A Survey for Intervening CIV Absorption-Line Systems Using SDSS Quasar Spectra

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...208.1504m&link_type=abstract

American Astronomical Society Meeting 208, #15.04; Bulletin of the American Astronomical Society, Vol. 38, p.96

Astronomy and Astrophysics

Astronomy

Scientific paper

Intervening CIV absorption-line systems are readily found in Sloan Digital Sky Survey (SDSS) quasar spectra at redshifts z > 1.5. Given the large number of absorbers, high statistical accuracy is possible in comparison to what was possible in the past. Here we present preliminary results on the incidence and evolution of the CIV systems as a function of CIV rest equivalent width. The absorber incidence is proportional to the product of gas cross-section and co-moving number density of absorbers, while the rest equivalent width is related to their kinematic spread. We discuss the interpretation of our results.

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