基于Hinode/SOT观测的太阳针状体地震学
太阳与恒星天体物理
2015-07-28 v1 星系天体物理
摘要
我们分析了从Hinode/SOT在太阳边缘获取的Ca II H线的时间序列。时距分析表明针状体的轴经历准周期横向位移。我们确定横向位移的周期约为40-150秒，平均振幅约为0.1-0.5角秒。对于振荡波长 ~ 1/0.06 arcsec ~ 11500 km，估计的扭折速度约为13-83 km/s。我们得到针状体中的磁场强度为 B_0 = 2 - 12.5 G，能量通量为 7 - 227 J/m^-2s。
引用
@article{arxiv.1507.07393,
title = {Seismology of solar spicules based on Hinode/SOT observations},
author = {V. Abbasvand and H. Ebadi and Z. Fazel},
journal= {arXiv preprint arXiv:1507.07393},
year = {2015}
}
备注
Published in Iranian Journal of Astronomy and Astrophysic. arXiv admin note: text overlap with arXiv:1209.5693; text overlap with arXiv:1208.4404 by other authors