The study of relatively low density stellar matter in presence of strong quantizing magnetic field

Journal Article · Sun Mar 15 00:00:00 EDT 2009 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2008.11.003· OSTI ID:21167719

Nag, Nandini; Ghosh, Sutapa ^[1]; Chakrabarty, Somenath ^[1]

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1. Department of Physics, Visva-Bharati, Santiniketan 731 235, West Bengal (India)

The effect of strong quantizing magnetic field on the equation of state of matter at the outer crust region of magnetars is studied. The density of such matter is low enough compared to the matter density at the inner crust or outer core region. Based on the relativistic version of semi-classical Thomas-Fermi-Dirac model in presence of strong quantizing magnetic field a formalism is developed to investigate this specific problem. The equation of state of such low density crustal matter is obtained by replacing the compressed atoms/ions by Wigner-Seitz cells with nonuniform electron density. The results are compared with other possible scenarios. The appearance of Thomas-Fermi induced electric charge within each Wigner-Seitz cell is also discussed.

• OSTI ID: 21167719
• Journal Information: Annals of Physics (New York), Vol. 324, Issue 3; Other Information: DOI: 10.1016/j.aop.2008.11.003; PII: S0003-4916(08)00179-6; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC CHARGES
ELECTRON DENSITY
EQUATIONS OF STATE
MAGNETIC FIELDS
NEUTRON STARS
POISSON EQUATION
RELATIVISTIC RANGE
THOMAS-FERMI MODEL