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On the intensity and spatial morphology of the 511 keV emission in the Milky Way
Nikos Prantzos
The positron emissivity of the Galactic bulge and disk, resulting from radioactivity of SNIa, is reassessed in the light of a recent evaluation of the SNIa rate. It is found that t…
The energetics, evolution, and stellar depletion of Li6 in the early Galaxy
Nikos Prantzos
Motivated by the recent report of a high Li6 ``plateau'' extending to low metallicities in Galactic halo stars, we study the energetics of an early production of Li6 through the in…
The Role of Single Stars of Low and Intermediate Mass in Galactic Chemical Evolution
Nikos Prantzos
A short overview is presented of the role that Low and Intermediate mass stars play in Galactic Chemical Evolution; their action affects key elements and isotopes, like deuterium,…
Astrophysical constraints from gamma-ray spectroscopy
Roland Diehl, Nikos Prantzos, Peter von Ballmoos
Gamma-ray lines from cosmic sources provide unique isotopic information, since they originate from energy level transitions in the atomic nucleus. Gamma-ray telescopes explored thi…