Documents Joseph F. Hennawi UC Berkeley & OSU October 3, 2007 Xavier Prochaska (UCSC) Quasars Probing Quasars.

Slide 1 Joseph F. Hennawi UC Berkeley & OSU October 3, 2007 Xavier Prochaska (UCSC) Quasars Probing Quasars Slide 2 A Simple Observation Spectrum from Wallace Sargent…