Data-constrained Magnetohydrodynamic Simulation of an Intermediate Solar Filament Eruption

IF 4.8 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Astrophysical Journal Pub Date : 2023-11-01 DOI:10.3847/1538-4357/acf75b
Yang Guo, Jinhan Guo, Yiwei Ni, M. D. Ding, P. F. Chen, Chun Xia, Rony Keppens, Kai E. Yang
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引用次数: 1

Abstract

Abstract Solar eruptive activities could occur in weak magnetic field environments and over large spatial scales, which are especially relevant to eruptions involving intermediate or quiescent solar filaments. To handle the large scales, we implement and apply a flux rope embedding method using regularized Biot–Savart laws in the spherical coordinate system. Combined with a potential field source surface model and a magneto-frictional method, a nonlinear force-free field comprising a flux rope embedded in a potential field is constructed. Using the combined nonlinear force-free field as the initial condition, we then perform a zero- β data-constrained magnetohydrodynamic (MHD) simulation for an M8.7 flare at 03:38 UT on 2012 January 23. The MHD model reproduces the eruption process, flare ribbon evolution (represented by the quasi-separatrix layer evolution), and kinematics of the flux rope. This approach could potentially model global-scale eruptions from weak field regions.
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一次中间太阳细丝喷发的数据约束磁流体动力学模拟
太阳爆发活动可能发生在弱磁场环境和大空间尺度上,这与涉及中间或静止太阳细丝的喷发特别相关。为了处理大尺度,我们在球坐标系下实现并应用了正则化Biot-Savart定律的通量绳嵌入方法。结合势场源面模型和磁摩擦法,构造了嵌入势场的磁链非线性无力场。利用组合非线性无力场作为初始条件,对2012年1月23日03:38 UT的M8.7耀斑进行了0 - β数据约束的磁流体动力学(MHD)模拟。MHD模型再现了喷发过程、耀斑带演化(以准分离层演化为代表)和通量绳的运动学。这种方法有可能模拟弱磁场地区的全球规模的火山喷发。
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来源期刊
Astrophysical Journal
Astrophysical Journal 地学天文-天文与天体物理
CiteScore
8.40
自引率
30.60%
发文量
2854
审稿时长
1 months
期刊介绍: The Astrophysical Journal is the foremost research journal in the world devoted to recent developments, discoveries, and theories in astronomy and astrophysics.
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