1999/07/29 by Jameel‐Un Nabi, J. -U. Nabi, Nabi, J. -U. +3
Physics and Astronomy · #Astro and Planetary Science #FOS: Physical sciences #Nuclear Theory (nucl-th) #Nuclear physics research studies #Pulsars and Gravitational Waves Research #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9907115
125 pages, 15 figures, stellar weak rates are presented in a condensed form to save space
arxiv created 1999/07/29 · openalex publication_date 1999/07/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Weak interaction rates and the associated energy losses for massive nuclei in the fp-shell are calculated in stellar matter using a modified form of proton-neutron quasiparticle RPA model with separable Gamow-Teller forces. A total of 209 nuclei with mass numbers ranging from A = 61 to 80 are considered here for the calculation of weak rates. These also include many neutron-rich nuclei which play a key role in the dynamics of the core collapse calculations. The stellar weak rates are calculated over a wide range of densities (10 < ρYe (gcm-3) < 1011) and temperatures (107 < T(K) 30 x 109). This is our third paper in a series starting with the calculation of stellar weak rates for nuclei in the sd-shell. The calculated rates take into consideration the latest experimental energy levels and ft value compilations. The effect of particle emission processes is taken into account and the energies and probabilities of these particle emission processes are also calculated in stellar environment. Our results are presented here on an abbreviated scale of temperature and density.