449 citations · 1.7k across the 20 of their papers we have counts for
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The Supernova Relic Neutrino Background
M. Kaplinghat, G. Steigman, T. P. Walker
An upper bound to the supernova relic neutrino background from all past Type II supernovae is obtained using observations of the Universal metal enrichment history. We show that an…
Nucleosynthesis in Power-Law Cosmologies
M. Kaplinghat, G. Steigman, T. P. Walker
We have recently considered cosmologies in which the Universal scale factor varies as a power of the age of the Universe and concluded that they cannot satisfy the observational co…
Primordial Nucleosynthesis: Theory and Observations
Keith A. Olive, Gary Steigman, Terry P. Walker
We review the Cosmology and Physics underlying Primordial Nucleosynthesis and survey current observational data in order to compare the predictions of Big Bang Nucleosynthesis with…
Constraining the cosmic abundance of stellar remnants with multi-TeV gamma-rays
David S. Graff, Katherine Freese, Terry Walker +1
If galactic halos contain stellar remnants, the infra-red flux from the remnant progenitors would contribute to the opacity of multi-TeV gamma-rays. The multi-TeV gamma-ray horizon…