***********************************************************
OATS-DAUT SEMINAR
***********************************************************

Speaker: Jason X. Prochaska (University of California Observatories)

Title: Quasars Probing Quasars and the Surrounding IGM

***********************************************************
Abstract:
I will discuss results based on studies of absorption line systems in projected quasar pairs. This will include the QSO-MgII cross-correlation function, the incidence of optically thick at near separations to QSOs (<200 kpc) and ongoing studies of flourescence from these systems. I'll describe the implications for studying the mass and sizes of absorption systems and also the lifetime and physical environment of z~2 quasars.
***********************************************************