The Deepest Spectrum of the Universe? Constraints on the Lyman Continuum Background at High Redshift

Andrew J. Bunker, Francine R. Marleau, James R. Graham

We describe an ongoing experiment to search for the meta-galactic Lyman-continuum background at z~2-3. We are obtaining one of the deepest optical spectra ever, using LRIS/Keck-II…