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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…
Improved Treatment of Cosmic Microwave Background Fluctuations Induced by a Late-decaying Massive Neutrino
Manoj Kaplinghat, Robert E. Lopez, Scott Dodelson +1
A massive neutrino which decays after recombination (t > 10^{13} sec) into relativistic decay products produces an enhanced integrated Sachs-Wolfe effect, allowing constraints to b…