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SMALL FLUCTUATIONS OF CORONAL X-RAY INTENSITY: A SIGNATURE OF NANOFLARES

机译:冠状X射线强度的小波动:纳米粗斑的签名

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We analyze fluctuations of X-ray intensity observed with the Soft X-Ray Telescope (SXT) aboard the Yohkoh satellite to detect the tiny events which may occur in the solar corona but cannot be observed as discrete events. We create simple histograms of the X-ray intensity fluctuation around the mean intensity, and measure the width of the histograms. The width of this component becomes broader with increasing intensity, and is larger than the width of the predicted noise distribution. We suggest that nanoflares produce the observed fluctuation of the X-ray intensity. The estimated energy of nanoflares that causes the fluctuation of X-ray intensity is 10~(20) ― 10~(22) erg. We also discuss the relationship between the nanoflare energy and magnetic fields.
机译:我们分析了用软X射线望远镜(SXT)观察到的X射线强度的波动(SXT),以检测太阳电晕可能发生的微小事件,但不能被观察为离散事件。我们在平均强度周围创建简单的X射线强度波动的直方图,并测量直方图的宽度。该部件的宽度随着强度的增加而变宽,并且大于预测噪声分布的宽度。我们建议纳米粗斑产生观察到的X射线强度的波动。导致X射线强度波动的纳米载体的估计能量为10〜(20) - 10〜(22)erg。我们还讨论了纳米物质能量和磁场之间的关系。

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