Penumbral models in the light of Hinode spectropolarimetric observations
Penumbral models in the light of Hinode spectropolarimetric observations
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DOI：
10.1051/0004-6361:20079021
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发表时间：
2007-11
影响因子：
6.5
通讯作者：
J. Jurčák;L. B. Rubio
中科院分区：
文献类型：
--
作者：
J. Jurčák;L. B. Rubio
目标。通过将预测与从分光偏振观测中检索到的半影丝的等离子体特性进行比较，可以评估当前半影模型的真实性。方法。 Hinode 上的分光偏振计首次使我们能够区分半影的精细结构。因此，我们可以使用单分量反演来获得每个像素中等离子体参数的分层。研究了等离子体参数与连续谱强度之间的相关性。结果。我们发现，在外半影中，较强的流动和较高的磁场倾角值往往位于暗丝中。这一发现似乎与无场间隙半影的情况不相容。
Aims. The realism of current models of the penumbra is assessed by comparing their predictions with the plasma properties of penumbral filaments as retrieved from spectropolarimetric observations. Methods. The spectropolarimeter onboard Hinode allows us, for the first time, to distinguish the fine structure of the penumbra. Therefore, we can use one-component inversions to obtain the stratifications of plasma parameters in each pixel. The correlations between the plasma parameters and the continuum intensity are studied. Results. We find that, in the outer penumbra, the stronger flows and higher values of magnetic field inclination tend to be located in dark filaments. This finding does not seem to be compatible with the scenario of a field-free gappy penumbra.