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

doi:10.1088/1674-1056/19/9/099601

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/μ_e = 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.

Keywords: electron screening superstrong magnetic field neutron star

Received: 07 September 2009
Revised: 12 April 2010
Accepted manuscript online:

PACS:	9635P
	9760J

Fund: 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).

Cite this article:

Liu Jing-Jing(刘晶晶) Effect of superstrong magnetic field on electron screening at the crusts of neutron stars 2010 Chin. Phys. B 19 099601

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

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