Equation of state of magnetar crusts from Hartree-Fock-Bogoliubov atomic mass models
N. Chamel, R. L. Pavlov, L. M. Mihailov, Ch. J. Velchev, Zh. K., Stoyanov, Y. D. Mutafchieva, M. D. Ivanovich, A. F. Fantina, J. M. Pearson,, S. Goriely
TL;DR
This paper calculates the equation of state for magnetar crusts using recent atomic mass data and HFB models, revealing significant differences from ordinary neutron star crusts.
Contribution
It introduces a novel EoS model for magnetar crusts based on updated atomic mass data and HFB calculations, extending previous models.
Findings
Magnetar crusts differ markedly from ordinary neutron star crusts.
The use of latest experimental data improves EoS accuracy.
Significant structural differences in magnetar crusts are identified.
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.
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Taxonomy
TopicsHigh-pressure geophysics and materials · earthquake and tectonic studies · Geological Studies and Exploration