姓名:  段爱英

职位:  副教授

办公室:  海琴2号A227

邮箱:  duanaiy@mail.sysu.edu.cn

 

研究兴趣:

太阳物理，太阳爆发活动，数据驱动数值模拟

 

研究概述:

本课题组主要利用卫星观测数据和MHD数值模拟方法研究太阳爆发活动的物理机制。太阳爆发活动本质上是太阳日冕磁场突发性、剧烈的能量释放过程，因此，理解爆发机制必须充分认识临近爆发产生时日冕磁场的结构特性。目前，课题组主要利用卫星和地面设备的观测数据，收集充分的爆发事件样本；基于高精度日冕磁场外推技术和磁拓扑分析方法，对临近爆发的活动区磁场三维结构进行全面的统计研究；初步总结出了描述这些结构的强度或者不稳定性的关键参数，及其和各种爆发模型之间的关联。接下来，我们将利用数据驱动方法，分析太阳爆发前的磁场结构，进一步提升对不同机制在太阳爆发过程中具体作用的认识，为预测太阳爆发、最终实现空间天气的准确定量预报提供重要参考。

发表文章目录：

  • Duan A. Y., H. Zhang and H. Y. Lu, 3D MHD Simulation of the Double-Gradient Instability of the Magnetotail Current Sheet, Science China Technological Sciences, 2018, 10.1007/s11431-017-9158-7.
  • Duan A. Y. and H. Zhang, Preprocessing Photospheric Vector Magnetograms for Nonlinear Force-Free Field Extrapolation of the Global Corona, Research in Astronomy and Astrophysics, 2018, 18(7): 85-96.
  • Duan A. Y., C. W. Jiang, Q. Hu, H. Zhang, G. A. Gary, S. T. Wu and J. B. Cao, Comparison of Two Coronal Magnetic Field Models to Reconstruct a Sigmoidal Solar Active Region with Coronal Loops, The Astrophysical Journal, 2017, 842(2):119-131.
  • Duan A. Y., J. B. Cao, M. Dunlop and Z. Q. Wang, Energetic electron bursts in the neutral sheet and their relation with BBFs, Journal of Geophysical Research: Space Physics, 2014, 119(11): 8902-8915.
  • Duan A. Y., J. B. Cao, Y. D. Ma and X. H. Wei, Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet, Science China Technological Sciences, 2013, 56(1): 914-204.
  • Cao J. B., A. Y. Duan, M. Dunlop, X. H. Wei and C. L. Cai, Dependence of IMF By penetration into the neutral sheet on IMF Bz and geomagnetic activity, Journal of Geophysical Research: Space Physics, 2014, 119(7), 5279–5285.
  • Cao J. B., A. Y. Duan, H. Reme and I. Dandouras, Relations of the energetic proton fluxes in the central plasma sheet with solar wind and geomagnetic activities, Journal of Geophysical Research: Space Physics, 2013, 118(11): 7226-7236.
  • Yang J., Y. D. Ma, A. Y. Duan and M. W. Dunlop, Multi-satellite observations of energy transport during an intense geomagnetic storm, Astrophysics and Space Science, 2016, 361(5): 168-180.
  • Cao J. B., X. H. Wei, A. Y. Duan, H. S. Fu, T. L. Zhang, H. Reme and I. Dandouras, Slow magnetosonic waves detected in reconnection diffusion region in the Earth’s magnetotail, Journal of Geophysical Research: Space Physics, 2013, 118 (4): 1659-1666.
  • Jiang C. W., X. L. Yan, X. S. Feng, A. Y. Duan, Q. Hu, P. B. Zuo and Y. Wang, Reconstruction of a Large-scale Pre-flare Coronal Current Sheet Associated with a Homologous X-shaped Flare, The Astrophysical Journal, 2017, 850(1): 8.
  • Jiang C. W., P. Zou, X. S. Feng, Q. Hu, R. Liu, P. Vemareddy, A. Y. Duan, P. B. Zou, Y. Wang, F. S. Wei, Magnetohydrodynamic Simulation of the X9.3 Flare on 2017 September 6: Evolving Magnetic Topology, The Astrophysical Journal, 2018, 869: 13.