This research project analyzes the spectra from quasar pairs to assess the gaseous environments surrounding this enigmatic phenomena.  The quasar pair sample is drawn from the SDSS, 2dF, BOSS, and similar surveys and a dedicated follow-up program.  The follow-up spectroscopy is obtained at the W.M. Keck Observatory, ESO’s Very Large Telescopes, the Magellan Observatory, and the Large Binocular Telescope.

This website provides a summary of the project, a list of the publications, and will serve to provide the reduced and calibrated 1d-spectra as they are released.