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Primordial nucleosynthesis redux
The abundances of D, He-3, He-4, and Li-7, are presently recalculated within the framework of primordial nucleosynthesis in the standard hot big band model, in order to estimate the primordial
Primordial nucleosynthesis: Theory and observations
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 the inferred
Direct X-ray Constraints on Sterile Neutrino Warm Dark Matter
Warm dark matter (WDM) might more easily account for small scale clustering measurements than the heavier particles typically invoked incold dark matter (�CDM) cosmologies. In this paper, we consider
The concordance cosmic star formation rate: implications from and for the supernova neutrino and gamma ray backgrounds
We constrain the cosmic star formation rate (CSFR) by requiring that massive stars produce the observed UV, optical, and IR light and at the same time not overproduce the diffuse supernova neutrino
Big-bang nucleosynthesis revisited
Abstract We compute the homogeneous big-bang nucleosynthesis yields of D, 3 He, 4 He, and 7 Li, taking into account recent measurements of the neutron mean-life as well as updates of several nuclear
Production of Li, Be, and B in the early galaxy
The production of lithium, beryllium, and boron via collisions between cosmic rays and interstellar gas nuclei during the early (Population II) evolution of the Galaxy is considered. There is a
Nucleosynthesis in power-law cosmologies
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 constraints on the
The Upper Bound to the Primordial Abundance of Helium and the Consistency of the Hot Big Bang Model
Consistency of the primordial abundance of 4 He with the predictions of big bang nucleosynthesis provides a key test of the standard model of cosmology. Recent calculations predict that the
Population II 6Li as a Probe of Nucleosynthesis and Stellar Structure and Evolution
We discuss the importance of Population II Li-6 as a diagnostic for models of primordial nucleosynthesis, cosmic-ray nucleosyntheses in the early Galaxy, and the structure and evolution of metal-poor