Magnetic field structures inside magnetars with strong toroidal field

Kotaro Fujisawa*

*この研究の対応する著者

研究成果: Chapter

抄録

We have analyzed the magnetized equilibrium studies with strong toroidal magnetic fields and found that the negative toroidal current density inside the star is very important for the strong toroidal magnetic fields. The strong toroidal magnetic fields require the strong poloidal current, but the strong poloidal current results in the localized strong toroidal current density in the axisymmetric system. This localized toroidal current changes the magnetic field configuration and makes the size of the toroidal magnetic field region smaller. As a result, the toroidal magnetic field energy can not become large. We need to cancel out the localized toroidal current density in order to obtain the large toroidal fields solutions. We have found and showed that the negative toroidal current cancels out the localized toroidal current density and sustain the large toroidal magnetic field energy inside the star. We can explain the magnetized equilibrium studies with strong toroidal magnetic fields systematically using the negative current density. Physical meaning of the negative current is key to the magnetar interior magnetic fields.

本文言語English
ホスト出版物のタイトルProceedings of the International Astronomical Union
出版社Cambridge University Press
ページ423-426
ページ数4
9
S302
ISBN(印刷版)9781107044982
DOI
出版ステータスPublished - 2014
外部発表はい

出版物シリーズ

名前Proceedings of the International Astronomical Union
番号S302
9
ISSN(印刷版)17439213
ISSN(電子版)17439221

ASJC Scopus subject areas

  • 天文学と天体物理学

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