氢原子布喇开系α谱线在白矮星强磁场中的塞曼效应  

Zeeman effects of Brackett-seriesαspectral line for H atom in white dwarf strong magnetic fields

作　　者：刘凤丽[1] LIU Fengli(College of Physical Sciences and Technology,Heilongjiang University,Harbin 150080,China)

机构地区：[1]黑龙江大学物理科学与技术学院,哈尔滨150080

出　　处：《黑龙江大学自然科学学报》2022年第6期726-733,共8页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(11974087)。

摘　　要：在球坐标系下,采用Finite-basis-size方法研究了H原子在强磁场中布喇开系α谱线的塞曼效应,磁感应强度选为磁化的白矮星磁场分别为0.001、0.010、0.100和1.000 a.u.。计算包含9种对称性0±、(-1)±、(-2)±、(-3)±、(-4)+共25个本征态的能级,以及满足跃迁选择定则的54种跃迁光谱的能级间隔和波长。计算结果表明,原子在强磁场中能级发生劈裂,简并度消除,随着磁感应强度的增加能级高低会改变,甚至会发生能级翻转现象;无磁场的布喇开系α谱线在强磁场中发生分裂,随着磁感应强度的改变,发生红移或蓝移。计算结果有助于白矮星的结构和磁场分析。The Finite-basis-size method previously developed has been extended,to calculate the Zeeman effects of H atoms for Brackett-seriesαspectral line in magnetic fields with field strengths 0.001,0.010,0.100 and 1.000 a.u.,typical of magnetic white dwarfs.The present calculations involve energy levels for 25 electronic states with nine symmetries 0±,(-1)±,(-2)±,(-3)±,(-4)+and the energy level differences and wavelengths for the 54 transitions.The obtained results are compared with the available theoretical data.The calculations show that the atomic energy level is split in the strong magnetic field,and the degeneracy is eliminated.The energy levels can be changed,even be reversed with increasing of the magnetic field strengths.Furthermore,the Zeeman spectral lines may be blue shift or red shift with the change of the magnetic field.The current atomic data would be useful for the astrophysical research of structure and magnetic field analysics of white dwarf.

关 键 词：Finite-basis-set方法 H原子 塞曼效应 强磁场 

分 类 号：O562.3[理学—原子与分子物理]