首页> 外文会议>Second Solar Cycle and Space Weather Euroconference Sep 24-29, 2001 Vico Equense, Italy >COOLING AND EVACUATION OF AN ACTIVE REGION LOOP COMPLEX OBSERVED WITH TRACE
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COOLING AND EVACUATION OF AN ACTIVE REGION LOOP COMPLEX OBSERVED WITH TRACE

机译:观察到的活性区域环络合物的冷却和排空

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摘要

We analyze the temporal variation of temperature and emission measure at the top of a coronal loop system observed with the Transition Region and Coronal Explorer (TRACE). Loops delineate regions of highly localized heating and are thus typically the focus of coronal heating theories. The analyzed data consist of observations in the 171A and 195 A passbands taken at a cadence of ~10 min obtained on May 15, 1999 during an observing campaign. The temperature and emission measure diagnostic is based in the 171A / 195 A filter-ratio technique. The loop system evacuates after the plasma at the top of the loops has cooled. Estimates of the timescales of energy losses by radiation and by conduction clearly suggest that the cooling is mainly due to radiation losses.
机译:我们分析了用过渡区和冠冕总管(TRACE)观测到的冠冕循环系统顶部温度和排放量的时间变化。圈圈描绘了高度局部加热的区域,因此通常是日冕加热理论的重点。分析的数据包括在一次观测活动中于1999年5月15日获得的〜10 min节奏在171A和195 A通带中的观测结果。温度和排放量测量诊断基于171A / 195 A滤波比技术。在回路顶部的等离子冷却后,回路系统将排空。通过辐射和传导损失能量的时间尺度的估计清楚地表明,冷却主要是由于辐射损失造成的。

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