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arXiv 1101.5563astro-ph.SR
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多组分He I 10830在活动灯丝中的分布

Multicomponent He I 10830 Å profiles in an active filament

C. Sasso, A. Lagg, S. K. Solanki

摘要:

我们提出了新的分光偏振观测色球He I 10830的多重态观察在其活动阶段的灯丝。2005年5月18日,德国真空塔望远镜(VTT)用新的特内里费红外偏振仪(TIP-II)记录了这些数据。我们使用多个大气成分反演了He Stokes剖面。所观察到的He Stokes轮廓显示出非常广泛的各种形状。大多数的配置文件显示非常广泛的斯托克斯I型和复杂的和空间可变的斯托克斯V签名。反演的配置文件显示的证据不同的大气蓝移和红移分量的He I线内的分辨率元素(1弧秒),超音速高达100公里/秒。在同一剖面中发现了多达五种不同的大气成分。我们表明,即使是这些复杂的配置文件可以可靠地反转。

英文摘要:

We present new spectropolarimetric observations of the chromospheric He I 10830 Å multiplet observed in a filament during its phase of activity. The data were recorded with the new Tenerife Infrared Polarimeter (TIP-II) at the German Vacuum Tower Telescope (VTT) on 2005 May 18. We inverted the He Stokes profiles using multiple atmospheric components. The observed He Stokes profiles display a remarkably wide variety of shapes. Most of the profiles show very broad Stokes I absorptions and complex and spatially variable Stokes V signatures. The inversion of the profiles shows evidence of different atmospheric blue- and redshifted components of the He I lines within the resolution element (1 arcsec), with supersonic velocities of up to 100 km/s. Up to five different atmospheric components are found in the same profile. We show that even these complex profiles can be reliably inverted.

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