Thomas-Fermi Calculations of Atoms and Matter in Magnetic Neutron Stars: Effects of Higher Landau Bands
Thomas-Fermi Calculations of Atoms and Matter in Magnetic Neutron Stars: Effects of Higher Landau Bands
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磁中子星中原子和物质的托马斯-费米计算：高朗道能带的影响
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
J. Yngvason
中科院分区：
文献类型：
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作者：
Oe. E. Roegnvaldsson;I. Fushiki;E. Gudmundsson;C. Pethick;J. Yngvason
在考虑所有朗道能级的情况下，我们在高斯-费米近似下计算了高磁场中冷态致密物质的状态方程。还计算了原子和物质的总能量和化学势，并且针对不同的磁场强度和总物质密度值，我们给出了电子密度作为距原子核距离的函数的详细分布。的配置文件显示了朗道壳结构，这对于铁原子在低压下是特别明显的顺序为10 - 11 G的磁场。在压缩物质中，当密度使得单位晶胞边界处的电子开始占据新的朗道带时，这种结构反映在高压缩性中
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 the 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 cell start to occupy a new Landau band