A new study of neutrino energy loss of nuclides 53–60Cr by electron capture in magnetars

Abstract

Following the theory of relativity, in the presence of an ultrastrong magnetic field (UMF) and utilizing a nuclear shell model, we carry out an estimation of the neutrino energy loss (NEL) rates of nuclides 53–60Cr, which occur by electron capture in magnetars. The results show that the NEL rates greatly increase when a UMF is present, and can even exceed nine orders of magnitude at relatively lower density and temperature (e.g. ρ7 = 5.86, Ye = 0.47, T9 = 7.33) in the range from 1013 G to 1018 G. However, the increase in rates was no more than six orders of magnitude at relatively higher density and temperature (e.g. ρ7 = 4.86 × 108, Ye = 0.39, T9 = 14.35).