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首页> 外文期刊>Physical review, E. Statistical physics, plasmas, fluids, and related interdisciplinary topics >Geometrical properties of avalanches in self-organized critical models of solar flares - art. no. 046125
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Geometrical properties of avalanches in self-organized critical models of solar flares - art. no. 046125

机译：自组织太阳耀斑临界模型中雪崩的几何特性-艺术。没有。 046125

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We investigate the geometrical properties of avalanches in self-organized critical models of solar flares. Traditionally, such models differ from the classical sandpile model in their formulation of stability criteria in terms of the curvature of the nodal field, and belong to a distinct universality class. With a view toward comparing these properties to those inferred from spatially and temporally resolved flare observations, we consider the properties of avalanche peak snapshots, time-integrated avalanches in two and three dimensions, and the two-dimensional projections of the latter. The nature of the relationship between the avalanching volume and its projected area is an issue of particular interest in the solar flare context. Using our simulation results we investigate this relationship, and demonstrate that proper accounting of the fractal nature of avalanches can bring into agreement hitherto discrepant results of observational analyses based on simple, nonfractal geometries for the flaring volume. [References: 40]
机译：我们研究了太阳耀斑的自组织临界模型中雪崩的几何特性。传统上，此类模型与经典沙堆模型的不同之处在于，它们根据节点场的曲率制定了稳定性标准，并且属于独特的通用性类别。为了将这些属性与从空间和时间分辨的耀斑观测推断出的属性进行比较，我们考虑了雪崩峰快照的属性，二维和三维时间积分雪崩以及后者的二维投影。在太阳耀斑的背景下，雪崩体积与其投影面积之间关系的性质是一个特别令人关注的问题。使用我们的模拟结果，我们研究了这种关系，并证明了对雪崩的分形性质的正确考虑可以使迄今为止基于简单的，非分形几何形状的扩口量观察分析的结果相一致。 [参考：40]

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