论文标题

通过Hα和通过SI IV1394Å线发射在色层中观察到的称为快速蓝移的Spicules的检测。

Detection of spicules termed Rapid Blue-shifted Excursions as seen in the chromosphere via Hα and the transition region via Si iv 1394 Å line emission

论文作者

Nhalil, Nived Vilangot, Shetye, Juie, Doyle, J. Gerry

论文摘要

我们使用半自动检测方法显示了SI IV1394Å发射线中称为快速蓝移段(RBE)的Spicules的特征。我们使用使用SJI1400Å通道在瑞典1-M太阳能望远镜上获得的CRISP成像光谱仪和联合界面区域成像光谱数据获得的Hα滤波器图,以研究转换区域RBE的时空签名。 RBE的检测是使用在35 km S^-1上的Hα多普勒格拉姆上的定向的冠状环追踪算法进行的。我们发现,检测特征的数量受到检测图像的时变造影剂值的显着影响,这是由于大气看条件的变化引起的。我们检测到407个寿命大于32秒的事件。基于Hα轮廓和RBE与大规模流量的接近度进一步降低至168个RBE。在这168个RBE中,其中89个在SJI1400Å通道中显示出明显的时空特征,表明观察到总共约53%的散布空间签名在染色体和过渡区域之间。

We show signatures of spicules termed Rapid Blue-shifted Excursions (RBEs) in the Si iv 1394 Å emission line using a semi-automated detection approach. We use the Hα filtergrams obtained by the CRISP imaging spectropolarimeter on the Swedish 1-m Solar Telescope and co-aligned Interface Region Imaging Spectrograph data using the SJI 1400 Å channel to study the Spatio-temporal signature of the RBEs in the transition region. The detection of RBEs is carried out using an oriented coronal loop tracing algorithm on Hα Dopplergrams at 35 km s^-1. We find that the number of detected features is significantly impacted by the time-varying contrast values of the detection images, which are caused by the changes in the atmospheric seeing conditions. We detect 407 events with lifetime greater than 32 sec. This number is further reduced to 168 RBEs based on the Hα profile and the proximity of RBEs to the large scale flow. Of these 168 RBEs, 89 of them display a clear Spatio-temporal signature in the SJI 1400 Å channel, indicating that a total of ~53% are observed to have co-spatial signatures between the chromosphere and the transition region.

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