ACTIVE LONGITUDE AND SOLAR FLARE OCCURRENCES
ACTIVE LONGITUDE AND SOLAR FLARE OCCURRENCES
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DOI：
10.3847/0004-637x/818/2/127
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
N. Gyenge;A. Ludm'any;T. Baranyi
中科院分区：
文献类型：
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作者：
N. Gyenge;A. Ludm'any;T. Baranyi
本研究的目的是确定鲁文·拉马蒂高能太阳光谱成像仪（RHESSI）和地球静止运行环境卫星（GOES）观测到的耀斑活动的时空特征，这些特征与增强的太阳黑子活动的纵向域的行为有关，即活跃经度（AL）。通过使用我们为此目的开发的方法，我们确定了德布勒森日光照相数据提供的每次卡灵顿旋转中的AL。根据北半球和南半球与AL的纵向距离分别估算了耀斑发生的空间概率。我们发现超过60%的RHESSI和GOES耀斑位于±36°？因此，产生耀斑最多的活动区往往位于或靠近活动的纵向带。这一观察到的特征可以用来预测增强燃除概率区域的地质有效位置。此外，我们研究了耀斑发生在AL附近的时间特性，发现了几个显著的波动。更准确地说，该方法的结果是以下波动：0.8年，1.3年和1.8年。这些在活动纵带内太阳耀斑发生的时空特性可以为我们提供增强的太阳耀斑预报机会。
The aim of the present work is to specify the spatio-temporal characteristics of flare activity observed by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and the Geostationary Operational Environmental Satellite (GOES) in connection with the behavior of the longitudinal domain of enhanced sunspot activity known as active longitude (AL). By using our method developed for this purpose, we identified the AL in every Carrington Rotation provided by the Debrecen Photoheliographic Data. The spatial probability of flare occurrence has been estimated depending on the longitudinal distance from AL in the northern and southern hemispheres separately. We have found that more than 60% of the RHESSI and GOES flares is located within ± 36 ° ?> from the AL. Hence, the most flare-productive active regions tend to be located in or close to the active longitudinal belt. This observed feature may allow for the prediction of the geo-effective position of the domain of enhanced flaring probability. Furthermore, we studied the temporal properties of flare occurrence near the AL and several significant fluctuations were found. More precisely, the results of the method are the following fluctuations: 0.8, 1.3, and 1.8 years. These temporal and spatial properties of the solar flare occurrence within the active longitudinal belts could provide us with an enhanced solar flare forecasting opportunity.