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L. G. Rimoldini (University of Pittsburgh), B. Menard (IAS Princeton), D. B. Nestor (University of Florida), S. M. Rao (University of Pittsburgh), R. K. Sheth (University of Pennsylvania), D. A. Turnshek (University of Pittsburgh), S. Zibetti (MPE Garching), S. Feather, A. Quider (University of Pittsburgh)
The detection of more than 14,000 MgII absorption doublets along the sight-lines to SDSS DR4 QSOs (pursued by Turnshek, Nestor, Rao, and collaborators) has produced the largest sample of MgII absorbers to date in the redshift interval 0.37 < z < 2.30. The statistical relation between galaxies and MgII systems is investigated by cross-correlating the spectroscopic MgII catalog with the SDSS imaging catalog of galaxies in the neighborhood of QSO sight-lines. A model for MgII absorbers is derived to account for the measured MgII rest equivalent width distribution and the absorbing galaxy properties (e.g., luminosity, impact parameter, and morphological type). Some preliminary results of our analysis are presented. This work was supported in part by the National Science Foundation. L.G.R. acknowledges further support from the Z. Daniel's Predoctoral Fellowship.
The author(s) of this abstract have provided an email address for comments about the abstract: lorenzo@bruno.phyast.pitt.edu
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.