Physics – Nuclear Physics
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phdt........16g&link_type=abstract
Ph.D. Thesis California Univ., San Diego.
Physics
Nuclear Physics
3
Astrophysics, Nuclei (Nuclear Physics), Space Plasmas, Stellar Interiors, Thermonuclear Reactions, High Temperature, Star Formation, Stellar Evolution, Wave Functions
Scientific paper
A very detailed and extensive calculation on the proton-proton fusion reaction, which takes place in the (high-temperature) central regions of young stars such as the sun is presented. A summary of the previous formulations of and results for the reaction rate is presented, and is then followed by calculations and results. Treatment consists of a recalculation of the lambda squared and S factors (defined therein) using different deuteron and p-p wave functions, but also includes evaluations of the various uncertainties attached to the determination of these quantities. The corrections applied to the (simplest) calculation of the reaction rate, and the relevance of these new results to the expected fluxes of the solar neutrinos are examined. The thermonuclear breakup processes which occur in astrophysical plasmas of ion temperatures kT(sub i) is approximately or greater than 1 MeV, is examined and some of their notable consequences investigated. Calculations of the rates of breakup of the (relevant) light species, as induced by protons, alphas, photons, and neutrons and electrons, respectively, are presented. The possibility of occurrence and the importance of these processes in accretion plasmas existing around compact stars (BHs, NSs, and WDs) are considered.
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