Electron capture of strongly screening nuclides ${}^{56}$Fe, ${}^{56}$Co, ${}^{56}$Ni , ${}^{56}$Mn ,${}^{56}$Cr and ${}^{56}$V in presupernova

Abstract

According to the Shell-Model Monte Carlo method, basing on the Random Phase Approximation and the linear response theory, we carried out an estimation on electron capture of strongly screening nuclides ${}^{56}$Fe, ${}^{56}$Co, ${}^{56}$Ni , ${}^{56}$Mn ,${}^{56}$Cr and ${}^{56}$V in strong electron screening (SES)in presupernova. The EC rates are decreased greatly and even exceed $21.5\%$ in SES. We also compare our results with those of Aufderheide (AFUD), which calculated by the method of Aufderheide in SES. Our results are agreed reasonably well with AUFD at higher density-temperature surroundings (e.g. ${\rho }_7>60,T_9=15.40$) and the maximum error is $\sim$0.5$\%$. However, the maximum error is $\sim$13.0$\%$ at lower density surroundings (e.g. ${}^{56}$Cr at ${\rho }_7=10,T_9=15.40,Y_e=0.41$ ). On the other hand, we also compared our results in SES with those of FFN's and Nabi's, which is in the case without SES. The comparisons show that our results are lower more than one order magnitude than FFN's, but about $7.23\%$ than Nabi's.

6 pages,5 figures, MNRAS, Volume 433, Issue 2, p.1108-1113

Cited by in corpus (8)

• Electron capture of iron group nuclei in magnetars
• A new insight into neutrino energy loss by electron capture of iron group nuclei in magnetars surface
• Strongly screening electron capture rates of chromium isotopes in presupernova
• A Magnetic-Monopole-Based Mechanism to the formation of the Hot Big Bang Modeled Universe
• A unified model of supernova driven by magnetic monopoles
• Resonant nuclear reaction ${}^{23}$Mg $(p,\gamma )$ ${}^{24}$Al in strongly screening magnetized neutron star crust
• Strong screening effects on resonant nuclear reaction ${}^{23}$Mg $(p,\gamma )$ ${}^{24}$Al in the surface of magnetars
• Electron capture strength on odd-A nucleus ${}^{59}$Co in explosive astrophysical environment