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The Solar-B mission and the forefront of solar physics

机译:太阳能-b使命和太阳能物理的最前沿

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We present the spectropolarimetric measurements of a sunspot situated near central meridian disk passage. The sunspot was of positive polarity with several opposite polarity magnetic elements at and beyond the penumbral boundary. The Hα images of the sunspot show bright emission regions near the penumbral boundary towards the sun-center, which was of opposite polarity to the main spot. Doppler velocities determined by measuring the center-of-gravity (COG) of the Stokes-I profile, in general, agree with Evershed flow. In addition, it shows strong flows in the penumbra. The velocities derived from zero-crossing wavelengths of Stokes-V profiles show strong downflows at the penumbral boundary. Double-lobed Stokes-V profiles are observed at locations where penumbral fibrils terminate coinciding with Hα plages. Double lobed profiles have an unshifted component similar to the Stokes-V profiles of the sunspot penumbra and a shifted component with a velocity of about 5 kms?1. The amplitude of the second component increases along the penumbral fibril as a function of the distance from the center of the sunspot. In this paper we present the preliminary results and propose to observe with the Solar-B Solar Optical Telescope (SOT) for understanding the nature of emerging flux near the sunspots.
机译:我们介绍了位于中央经络磁盘通道附近的太阳黑子的分光极测量。太阳黑子具有正极极性,具有几个相反的极性磁性元素及其超出了Penumbral边界。太阳黑子的Hα图像显示了朝向太阳中心的Penumbral边界附近的发光区域,这对主要斑点相反。通过测量Stokes-I型材的重心(COG)决定的多普勒速度,通常同意evershed流程。此外,它在Penumbra中显示了强烈的流动。源自斯托克斯-V型材的零交叉波长的速度显示出Penumbral边界的强向下流动。在Penumbral Fibrils终止与Hα的石头终止的位置,观察到双裂的斯托克斯-V型材。双叶片型材具有类似于太阳黑子半影的斯托克斯-V型材和速度约为5公里的速度的型号的连续组件。第二组分的幅度随着距离太阳黑子中心的距离的函数而增加。在本文中,我们提出了初步结果,并建议观察太阳能光学望远镜(SOT),以了解太阳黑子附近的新兴通量的性质。

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