On the Crustal Matter of Magnetars

Abstract

We have investigated some of the properties of dense sub-nuclear matter at the crustal region (both the outer crust and the inner crust region) of a magnetar. The relativistic version of Thomas-Fermi (TF) model is used in presence of strong quantizing magnetic field for the outer crust matter. The compressed matter in the outer crust, which is a crystal of metallic iron, is replaced by a regular array of spherically symmetric Wigner-Seitz (WS) cells. In the inner crust region, a mixture of iron and heavier neutron rich nuclei along with electrons and free neutrons has been considered. Conventional Harrison-Wheeler (HW) and Bethe-Baym-Pethick (BBP) equation of states are used for the nuclear mass formula. A lot of significant changes in the characteristic properties of dense crustal matter, both at the outer crust and the inner crust, have been observed.

29 pages REVTEX manuscript, 15 .eps figures (included)

References in corpus (2)

• The Neutron Star Crust: Nuclear Physics Input
• The Study of Relatively Low Density Stellar Matter in Presence of Strong Quantizing Magnetic Field

Cited by in corpus (5)

• Inner crusts of neutron stars in strongly quantising magnetic fields
• Magnetised neutron star crust within effective relativistic mean-field model
• Work Function of Strongly Magnetized Neutron Star Crustal Matter and the Associated Magneto-Sphere
• The Thomas-Fermi and the Thomas-Fermi-Dirac Models in Two-Dimension- the Effect of Strong Quantizing Magnetic Field
• A Theoretical Study of the Magnetically Deformed Inner Crust Matter of Magnetars