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首页> 外文期刊>Journal of Space Weather and Space Climate >Solar flares, coronal mass ejections and solar energetic particle event characteristics
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Solar flares, coronal mass ejections and solar energetic particle event characteristics

机译：太阳耀斑，日冕物质抛射和太阳高能粒子事件特征

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A new catalogue of 314 solar energetic particle (SEP) events extending over a large time span from 1984 to 2013 has been compiled. The properties as well as the associations of these SEP events with their parent solar sources have been thoroughly examined. The properties of the events include the proton peak integral flux and the fluence for energies above 10, 30, 60 and 100?MeV. The associated solar events were parametrized by solar flare (SF) and coronal mass ejection (CME) characteristics, as well as related radio emissions. In particular, for SFs: the soft X-ray (SXR) peak flux, the SXR fluence, the heliographic location, the rise time and the duration were exploited; for CMEs the plane-of-sky velocity as well as the angular width were utilized. For radio emissions, type III, II and IV radio bursts were identified. Furthermore, we utilized element abundances of Fe and O. We found evidence that most of the SEP events in our catalogue do not conform to a simple two-class paradigm, with the 73% of them exhibiting both type III and type II radio bursts, and that a continuum of event properties is present. Although, the so-called hybrid or mixed events are found to be present in our catalogue, it was not possible to attribute each SEP event to a mixed/hybrid sub-category. Moreover, it appears that the start of the type III burst most often precedes the maximum of the SF and thus falls within the impulsive phase of the associated SF. At the same time, type III bursts take place within?≈5.22?min, on average, in advance from the time of maximum of the derivative of the SXR flux ( Neupert effect ). We further performed a statistical analysis and a mapping of the logarithm of the proton peak flux at E ??10?MeV, on different pairs of the parent solar source characteristics. This revealed correlations in 3-D space and demonstrated that the gradual SEP events that stem from the central part of the visible solar disk constitute a significant radiation risk. The velocity of the associated CMEs, as well as the SXR peak flux and fluence, are all fairly significantly correlated to both the proton peak flux and the fluence of the SEP events in our catalogue. The strongest correlation to SEP characteristics is manifested by the CME velocity.
机译：从1984年到2013年的314个太阳高能粒子（SEP）事件的新目录已经编制完毕。这些SEP事件与其父级太阳能源的性质以及关联已得到彻底检查。事件的性质包括质子峰积分通量和能量在10、30、60和100？MeV以上的能量通量。通过太阳耀斑（SF）和日冕物质抛射（CME）特征以及相关的无线电辐射对相关的太阳事件进行了参数化。特别是对于SF：利用了软X射线（SXR）峰值通量，SXR能量通量，螺旋位置，上升时间和持续时间。对于CME，利用了天空速度以及角宽度。对于无线电发射，确定了III，II和IV型无线电突发。此外，我们利用了Fe和O的元素丰度。我们发现有证据表明，目录中的大多数SEP事件均不符合简单的两类范例，其中73％的事件同时表现出III型和II型无线电脉冲，并且存在连续的事件属性。尽管在我们的目录中发现了所谓的混合事件或混合事件，但是不可能将每个SEP事件都归为混合/混合子类别。此外，似乎III型爆发的开始通常在SF的最大值之前，因此落在相关SF的冲动阶段。同时，从SXR通量的导数的最大值开始，平均III型突发平均在约≈5.22min内发生（Neupert效应）。我们进一步对母体太阳能源的不同特征进行了统计分析，并得出了E≥10≤MeV时质子峰通量的对数。这揭示了3-D空间中的相关性，并表明源自可见太阳盘中心的逐渐发生的SEP事件构成了显着的辐射风险。在我们的目录中，相关CME的速度以及SXR峰值通量和注量与质子峰值通量和SEP事件的注量均显着相关。与CEP速度最强的相关性体现在CME速度上。

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