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Stability of the lundquist field and the physical nature of eruptive prominences with helical structure

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Abstract

The stability of the Lundquist field is analysed in the light of the energy principle. The results show: (1) form = 0 disturbances, the Lundquist field is stable; (2) form = 1 disturbances, the Lundquist field will turn unstable in certain conditions. Whether the field will remain stable or not depends on parameters such as the helical pinch angle and radius and length of the prominence. Comparison between theory and observations reveals that a kink instability in the Lundquist field may be a critical physical reason for eruptive prominences with helical patterns.

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Authors and Affiliations

  1. Department of Astronomy, Nanjing University, Nanjing, China

    Xu Ao-Ao

  2. Nanjing Railway Medical College, Nanjing, China

    Wu Gui Ping

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  1. Xu Ao-Ao
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  2. Wu Gui Ping
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Xu, AA., Wu, G.P. Stability of the lundquist field and the physical nature of eruptive prominences with helical structure. Sol Phys 159, 265–273 (1995). https://doi.org/10.1007/BF00686533

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  • DOI: https://doi.org/10.1007/BF00686533

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