J/ApJ/416/276  Eq. of State in Magnetic Neutron Stars    (Rognvaldsson+ 1993)
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Thomas-Fermi calculations of atoms and matter in magnetic neutron
stars: effects of higher Landau bands
   Rognvaldsson O.E., Fushiki I., Gudmundsson E.H., Pethick C.J.,
   Yngvason J.
   <Astrophys. J., 416, 276 (1993)>
   =1993ApJ...416..276R
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ADC_Keywords: Models, evolutionary; Atomic physics; Stars, variable
Keywords: Thomas-Fermi approximation; Landau levels; Neutron Stars

Description:
   This catalog is based on the calculated equation of state in
   cold dense matter. Each table in the catalog lists bulk
   properties of Fe-56 in a magnetic field ranging from one
   million to 1000 million Tesla.

Introduction:
   We calculate the equation of state for cold dense matter in high
   magnetic fields in the Thomas-Fermi approximation, taking all
   Landau levels into account. Total energies and chemical
   potentials for atoms and matter are also calculated, and we
   present detailed profiles of the electron density as a function
   of the distance from the atomic nucleus for various values of
   the magnetic field strength and total matter density. The
   profiles show a Landau shell structure, which for iron atoms at
   low pressure is particularly pronounced for magnetic fields of
   order 10^11^ G. In compressed matter this structure is reflected
   in a high compressibility when the density is such that electrons
   at the boundary of a unit shell start to occupy a new Landau
   band. This leads to an oscillatory behavior of the density
   gradient as a function of depth in the surface layers of magnetic
   neutron stars.


File Summary:
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  FileName    Lrecl    Records   Explanations
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ReadMe         80            .   This file
b10_0.dat      68           40   1 million (10^6^) Tesla
b10_5.dat      68           46   3 million (10^6.5^) Tesla
b11_0.dat      68           41   10 million (10^7^) Tesla
b11_5.dat      68           42   30 million (10^7.5^) Tesla
b12_0.dat      68           30   100 million (10^8^) Tesla
b12_5.dat      68           27   300 million (10^8.5^) Tesla
b13_0.dat      68           20   1000 million (10^9^) Tesla
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Byte-by-byte Description of: *.dat
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Bytes    Format     Units     Label      Explanation
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 1- 8     E8.2       kg/m3    density    density of matter
10-20     E11.5      m        radius     radius of cell
22-32     E11.5      Pa       pressure   pressure
34-45     E12.5      keV      eatom      total energy of atom (in 1.602E-16J)
47-58     E12.5      keV      chempot    chemical potential (in 1.602E-16J)
59-68     F10.7      m        zg12       depth.(surface gravity)/(10^12 m/s^2)
----------------------------------------------------------------------------

References:
   Astrophysical Journal, 416, 276, 1993.
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(End)       N. Paul Kuin                                             09-Jul-1996