The High-Temperature Response of the TRACE 171 Å and 195 Å Channels
The High-Temperature Response of the TRACE 171 Å and 195 Å Channels
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TRACE 171 Å 和 195 Å 通道的高温响应
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
E. Landi
中科院分区：
文献类型：
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作者：
K. Phillips;C. Chifor;E. Landi
CHIANTI光谱代码用于估算TRACE 171和195通道的谱线和连续谱强度贡献，这些通道广泛用于对各种太阳特征和现象进行成像，包括安静太阳和活动区域环以及太阳耀斑。结果表明，由于连续谱和Fe XX谱线的发射，171通道具有高温响应，因此在TRACE 195图像以及Yohkoh和RHESSI的X射线图像中突出的耀斑高温（~10-20 MK）特征有时在171通道的图像中可见。这些特征包括热环顶发射、限制点或环拱廊中的“脊柱”结构。TRACE和X射线耀斑图像对此进行了说明。
The CHIANTI spectral code is used to estimate line and continuum intensity contributions to the TRACE 171 and 195 Å channels, widely used for imaging a variety of solar features and phenomena, including quiet-Sun and active region loops and solar flares. It is shown that the 171 Å channel has a high-temperature response due to continuum and Fe XX line emission, so high-temperature (~10-20 MK) features in flares, prominent in TRACE 195 Å images as well as in X-ray images from Yohkoh and RHESSI, are sometimes visible in images made in the 171 Å channel. Such features consist of hot loop-top emission, either confined spots or "spine" structures in loop arcades. This is illustrated with TRACE and X-ray flare images.