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arXiv 1504.03533astro-ph.SR
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太阳黑子上方多波长纤维动力学和振荡。形态特征

Multi-wavelength Fibril Dynamics and Oscillations Above Sunspot - I. Morphological Signature

Emanuel Sungging Mumpuni, Dhani Herdiwijaya, Mitra Djamal, Thomas Djamaluddin

摘要:

在这项工作中,我们选择了一个特定的原纤维从高分辨率的太阳色球层观察荷兰开放望远镜,并试图获得一个广泛的图片复杂的机制,可能会被纳入太阳大气层的多层高节奏多波长观测。我们使用多波长层析成像分析了变化的纤维图案,该图案由H $α$线中心和蓝翼、多普勒信号、Ca II H和G带组成。我们已经发现,从多普勒图像中通过原纤维的间歇性喷射物质清楚地显示了振荡模式,如在H $α$蓝色机翼中所见。太阳黑子上方的本影和半影磁场线的振荡导致了变宽,并形成了一个环形区域,从3到15分钟的振荡作为高度的函数。这就形成了一个明显的本影和半影的边界,表明了梳状结构,并表明振荡可以从下面沿着倾斜的磁通量管传播。3分强磁场出现在大倾角半影磁力线上,并产生清晰的光桥。在H $α$蓝翼,长的7分光团是透明的,而10分光团和15分光团也是透明的,它集中在H $α$蓝翼的半影内。从这些发现中,我们提出了一个图片的纤维层之间的相互作用的织物的作用,以及周围的活性区域的相关activites正在调查。

英文摘要:

In this work we selected one particular fibril from a high resolution solar chromosphere observation from the Dutch Open Telescope, and tried to obtain a broad picture of the intricate mechanism that might be incorporated in the multiple layer of the Solar atmosphere in high cadence multi-wavelength observation. We analyzed the changingvfibril patter using multi-wavelength tomography, which consists of both H$α$ line center \& the blue wing, Doppler-signal, Ca II H, and the G-band. We have found that the intermittent ejected material through fibril from Doppler images has clearly shown oscillation mode, as seen in the H$α$ blue wing. The oscillations in the umbrae and penumbrae magnetic field lines that are above the sunspot cause a broadening and forms the area like a ring shape from 3 to 15-minute oscillations as function of height. These made a distinct boundary of umbrae and penumbrae which suggest the comb structure, and indicate that the oscillations could propagate along the inclined magnetic flux tubes from below. The 3-minute strongly appeared in the broadly inclined penumbrae magnetic filed lines and gave the clear light-bridge. The well known 5-minute was dominated in the umbrae-penumbrae region boundary, the long 7-minute one was transparent in the H$α$ blue wing, but this was the same with 10 and 15-minute, it was concentrated in the inner-penumbrae, as seen in the H$α$ line center. From these findings we propose a picture on the role of fibril as the fabric of interaction between the layers, also the related activites around the active region under investigation.

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