Equation of state of magnetar crusts from Hartree-Fock-Bogoliubov atomic mass models

Abstract

The equation of state (EoS) of the outer crust of a cold non-accreting magnetar has been determined using the model of Lai and Shapiro (1991). For this purpose, we have made use of the latest experimental atomic mass data complemented with a Hartree-Fock-Bogoliubov (HFB) mass model. Magnetar crusts are found to be significantly different from the crusts of ordinary neutron stars.

arXiv comment2 pages, to appear in the proceedings of the ERPM conference, Zielona Gora, Poland, April 2012