中文

太阳磁场的宇称及相关天体物理现象

综合物理 2010-12-23 v1

摘要

利用1959-1985年光球磁场的球谐系数,计算了奇宇称(Bo)和偶宇称(BE)纬向磁多极子对太阳磁场的累积贡献。结果表明,在每个太阳黑子周期中,太阳磁场的主导宇称会从奇宇称变为偶宇称。本文还将讨论Bo和BE的变化与不同天体物理现象(如太阳极区磁场反转、黑子活动的南北不对称性以及行星际磁场强度)的关联。通过太阳观测,我们推断在过去12个太阳活动周期中,当太阳活动呈现上升趋势时,太阳磁场的主导宇称正从偶宇称变为奇宇称。

关键词

引用

@article{arxiv.1012.3562,
  title  = {Parity of the Solar Magnetic Fields and Related Astrophysical Phenomena},
  author = {G. Gopkumar and T. E. Girish},
  journal= {arXiv preprint arXiv:1012.3562},
  year   = {2010}
}

备注

This paper is presented in the Indian Science Congress held in Trivandrum,India during January 2009; Key words : spherical harmonics, parity,solar magnetic fields,sunspot activity