Numerical simulation of the electron capture process in a magnetar interior

Abstract

In a superhigh magnetic field, direct Urca reactions can proceed for an arbitrary proton concentration. Since only the electrons with high energy $E$ ($E>Q$, $Q$ is the threshold energy of inverse $\beta -$decay) at large Landau levels can be captured, we introduce the Landau level effect coefficient $q$ and the effective electron capture rate ${\Gamma }_{\mathrm{eff}}$. By using ${\Gamma }_{\mathrm{eff}}$, the values of $L_{\mathrm{X}}$ and $L_{\nu }$ are calculated, where and $L_{\nu }$, $L_{\mathrm{X}}$ are the average neutrino luminosity of Anomalous X-ray Pulsars (AXPs) and the average X-ray luminosity of AXPs, respectively. The complete process of electron capture inside a magnetar is simulated numerically.

10 Pages, 3 Figures, Published in Astrophys. Space. Sci. 2011. 332, P.129-138

References in corpus (2)

• The physics of strong magnetic fields in neutron stars
• The physics of strong magnetic fields and activity of magnetars

Cited by in corpus (8)

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• Evolution of superhigh magnetic fields of magnetars
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• Electron capture strength on odd-A nucleus ${}^{59}$Co in explosive astrophysical environment