2 papers
astro-ph1999
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…
astro-ph1999
Interstellar Low Energy Antiprotons as a Probe of Dark Matter and Primordial Black Holes
J. Ormes, A. Moiseev, J. Wells
Cosmic ray antiprotons can originate from dark matter annihilating into quarks that subsequently decay into antiprotons. Evaporation of primordial black holes also can produce a si…