Expanded calculations of pn-QRPA electron capture rates on ⁵⁵Co for presupernova and supernova physics

2025/05/02 by Jameel-Un Nabi, Muhammad Sajjad · 1 voice
Physics and Astronomy · #nucl-th

paper · pdf · doi:10.1139/p08-014

Abstract

Due to its abundance and its relatively high capture rates, ⁵⁵Co is one of the key nuclide that can control the dynamics of core collapse of a massive star. Previously we introduced our microscopic calculations of capture rates on ⁵⁵Co using the proton-neutron quasi-particle random phase approximation (pn-QRPA) theory. Here we present for the first time an expanded calculation of the electron capture rates on ⁵⁵Co on an extensive temperature-density scale. These type of scale is appropriate for interpolation purposes and of greater utility for simulation codes.

Citations

• Comparative study of Gamow-Teller strength distributions in the odd-odd nucleus 50V and its impact on electron capture rates in astrophysical environments
• Gamow-Teller strength distributions and electron capture rates for 55Co and 56Ni
• The consequences of nuclear electron capture in core collapse supernovae
• On the uncertainty in the 0νββ decay nuclear matrix elements
• Presupernova collapse models with improved weak-interaction rates
• Shell model calculations of stellar weak interaction rates: I. Gamow-Teller distributions and spectra of nuclei in the mass range A=45-65
• Weak Interaction Rates Of sd-Shell Nuclei In Stellar Environment Calculated in the Proton-Neutron Quasiparticle Random Phase Approximation
• Microscopic calculations of weak interaction rates of nuclei in stellar environment for A = 18 to 100
• Supernova electron capture rates for 55Co and 56Ni
• Review of particle properties

Discussions

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