论文标题
Stokes V区域的演变与Gris/IFU观察到的安静的太阳取消相关的不对称性
Evolution of Stokes V area asymmetry related to a quiet Sun cancelation observed with GRIS/IFU
论文作者
论文摘要
使用安装在Gregor红外光谱仪（GRIS）上的积分场单元（IFU）记录了磁盘中心的安静的太阳磁通量取消事件。 Gris在光电SI I10827Å光谱线上采样了这一事件。取消之前是线核强度和激发温度的显着升高，这是从局部热力学平衡（LTE）下的Stokes反转推断出来的。相反的极性特征似乎在光球上方进行重新连接。我们还发现，在极性之一的极性反转线附近的边界像素表现出面积不对称的系统变化。线核强度增强后，面积不对称峰值峰值，此后逐渐下降。因此，分析从极性反转线的任一侧记录的Stokes轮廓可能会提供有关与磁通量取消相关的重新连接过程的其他信息。进一步的分析不假定LTE需要充分表征此事件。
A quiet Sun magnetic flux cancelation event at the disk centre was recorded using the Integral Field Unit (IFU) mounted on the GREGOR Infrared Spectrograph (GRIS). GRIS sampled the event in the photospheric Si I 10827 Å spectral line. The cancelation is preceded by a significant rise in line core intensity and excitation temperature, which is inferred from Stokes inversions under local thermodynamic equilibrium (LTE). The opposite polarity features seem to undergo reconnection above the photosphere. We also found that the border pixels neighboring the polarity inversion line of one of the polarities exhibit a systematic variation of area asymmetry. Area asymmetry peaks right after the line core intensity enhancement and gradually declines thereafter. Analyzing Stokes profiles recorded from either side of the polarity inversion line could therefore potentially provide additional information on the reconnection process related to magnetic flux cancelation. Further analysis without assuming LTE will be required to fully characterize this event.
