Exploring the Universe with Quasar Absorption Spectra: correlations among tracers of the mass density field and the impact of ionizing background intensity fluctuations 

Gontcho, Satya Gontcho A (Date of defense: 2017-09-22)

The work we present in this manuscript revolves around the use of quasar spectra to probe the Universe. Absorption features in the electromagnetic spectrum of bright distant quasars by ionized hydrogen give us access to ...