中国物理B ›› 2010, Vol. 19 ›› Issue (9): 99601-099601.doi: 10.1088/1674-1056/19/9/099601

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇    下一篇

Effect of superstrong magnetic field on electron screening at the crusts of neutron stars

刘晶晶   

  1. College of Science and Tecnology, Qiongzhou University, Sanya 572022, China
  • 收稿日期:2009-09-07 修回日期:2010-04-12 出版日期:2010-09-15 发布日期:2010-09-15
  • 基金资助:
    Project supported by the Natural Science Foundation of Hainan Province, China (Grant No. 109004), the Scientific Research and Foundation of Hainan Provincial Education Department, China (Grant No. Hjkj2010-42) and the Special Foundation of Institutions fo

Effect of superstrong magnetic field on electron screening at the crusts of neutron stars

Liu Jing-Jing(刘晶晶)†   

  1. College of Science and Tecnology, Qiongzhou University, Sanya 572022, China
  • Received:2009-09-07 Revised:2010-04-12 Online:2010-09-15 Published:2010-09-15
  • Supported by:
    Project supported by the Natural Science Foundation of Hainan Province, China (Grant No. 109004), the Scientific Research and Foundation of Hainan Provincial Education Department, China (Grant No. Hjkj2010-42) and the Special Foundation of Institutions for Higher Education of Sanya (Grant No. YD09047).

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摘要： The influences of electron screening (ES) and electron energy correction (EEC) are investigated by superstrong magnetic field (SMF). We also discuss in detail the discrepant factor between our results and those of Fushiki, Gudmundsson and Pethick (FGP) in SMF. The results show that SMF has only a slight effect on ES when B < 109 T on the surfaces of most neutron stars. Whereas for some magnetars, SMF influence ES greatly when B > 109 T . For instance, due to SMF the ES potential may be increased about 23.6% and the EEC may be increased about 4 orders of magnitude at ρ/μe = 1.0×106 mol/cm3 and T9 = 1. On the other hand, the discrepant factor shows that our results are in good agreement with FGP's when B < 109 T . But the difference will be increased with increasing SMF.

Abstract: The influences of electron screening (ES) and electron energy correction (EEC) are investigated by superstrong magnetic field (SMF). We also discuss in detail the discrepant factor between our results and those of Fushiki, Gudmundsson and Pethick (FGP) in SMF. The results show that SMF has only a slight effect on ES when B < 109 T on the surfaces of most neutron stars. Whereas for some magnetars, SMF influence ES greatly when B > 109 T . For instance, due to SMF the ES potential may be increased about 23.6% and the EEC may be increased about 4 orders of magnitude at ρ/μe = 1.0×106 mol/cm3 and T9 = 1. On the other hand, the discrepant factor shows that our results are in good agreement with FGP's when B < 109 T . But the difference will be increased with increasing SMF.

Key words: electron screening, superstrong magnetic field, neutron star

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