238 citations · 632 across the 7 of their papers we have counts for
13 papers · 1 filter
Abundances in Metal-Poor Stars and Chemical Evolution of the Early Galaxy
G. J. Wasserburg, Y. -Z. Qian
We have attributed the elements from Sr through Ag in stars of low metallicities ([Fe/H] < -1.5) to charged-particle reactions (CPR) in neutrino-driven winds, which are associated…
Abundances of Sr, Y, and Zr in Metal-Poor Stars and Implications for Chemical Evolution in the Early Galaxy
Y. -Z. Qian, G. J. Wasserburg
Studies of nucleosynthesis in neutrino-driven winds from nascent neutron stars show that the elements from Sr through Ag with mass numbers A~88-110 are produced by charged-particle…
Magnetic Mixing in Red Giant and Asymptotic Giant Branch Stars
J. Nordhaus, M. Busso, G. J. Wasserburg +2
The available information on isotopic abundances in the atmospheres of low-mass Red Giant Branch (RGB) and Asymptotic Giant Branch (AGB) stars requires that episodes of extensive m…
Can Extra Mixing in RGB and AGB Stars Be Attributed to Magnetic Mechanisms?
Maurizio Busso, Gerald J. Wasserburg, Kenneth M. Nollett +1
It is known that there must be some weak form of transport (called cool bottom processing, or CBP) acting in low mass RGB and AGB stars, adding nuclei, newly produced near the hydr…
Short-lived Nuclei in the Early Solar System: Possible AGB Sources
G. J. Wasserburg, M. Busso, R. Gallino +1
(Abridged) We review abundances of short-lived nuclides in the early solar system (ESS) and the methods used to determine them. We compare them to the inventory for a uniform galac…
Metal Enrichment of the Intergalactic Medium and Production of Massive Black Holes
Y. -Z. Qian, G. J. Wasserburg
A model for the chemical evolution of the intergalactic medium (IGM) is presented using theoretical yields of very massive stars (VMSs) and Type II supernovae (SNe II). It is shown…