Because of 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. This type of scale is appropriate for interpolation purposes and of greater utility for simulation codes.PACS Nos.: 26.50.+x, 21.60.Jz, 23.40.–s, 27.40.+z
Stellar electron-capture rates based on finite-temperature relativistic quasiparticle random-phase approximation