首页> 外文期刊>The Astrophysical journal >FIRST SOFT X-RAY OBSERVATIONS OF GLOBAL CORONAL WAVES WITH THE GOES SOLAR X-RAY IMAGER
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FIRST SOFT X-RAY OBSERVATIONS OF GLOBAL CORONAL WAVES WITH THE GOES SOLAR X-RAY IMAGER

机译:太阳X射线成像仪对全球冠状波的首次软X射线观测

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摘要

We present the first observations of global coronal waves obtained with the Solar X-Ray Imager (SXI) aboard the GOES-12 satellite. Focusing on six events, the basic morphological and kinematic characteristics of the waves observed in soft X-rays are derived. Taking advantage of SXI's high temporal cadence and comparing the wave signatures with extreme-UV, Hα, and He I data, we prove that both chromospheric and coronal signatures of waves can be created by a single decelerating disturbance, presumably a large-amplitude simple wave or shock. We stress that SXI is a very useful tool for studying coronal waves and other transients because of its high cadence and duty cycle.
机译:我们展示了通过GOES-12卫星上的太阳X射线成像仪(SXI)获得的全球日冕波的首次观测结果。着眼于六个事件,推导了在软X射线中观察到的波的基本形态学和运动学特征。利用SXI的高时间节奏并将波特征与极端UV,Hα和He I数据进行比较,我们证明了波的色球和冠状特征都可以由单个减速扰动(大概是大振幅简单波)产生或震惊。我们强调,由于SXI具有很高的节奏和占空比,它是研究日冕波和其他瞬变的非常有用的工具。

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