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Photometric and Statistical Analysis of Solar Energetic Particle (SEP) for the Peak of Solar Cycle 24

机译:太阳周期24峰值的高能粒子(SEP)的光度和统计分析

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The major solar energetic particle events for the peak of solar cycle (24) for years (2012-2015) are analyzed by using the Energetic and Relativistic Nucleus and Electrons (ERNE) detectors and Large Angle and Spectrometric Coronagraph Experiment (LASCO) on board SOHO. It is found that the number of events which satisfies the required condition was 82 events. LASCO give information about Central Position Angle (CPA), Angular Width (AW), the speed of associated Coronal Mass Ejections (CMEs) and their basic features which cataloged in a data base SOHO/LASCO. The logarithmic intensity-time profile of SEP for the peak of solar cycle (24) was provided by ERNE, and from this profile the injection time, width, speed and onset time were estimated. All results that arise from these photometric analysis were statistically analyzed by using the statistical program SPSS (version 19). It have been concluded that 90% of these events were halo (360°) CPA, 1% of North West, 4% South West and 2% North East and South East, as well as it was found that 39% gradual events and 29% impulsive events while 32% were not clear events, and also the acceleration of the energetic particle is not only in the interplanetary but also in the location of the event. We found from the statistical analysis for these events that the acceleration is inversely proportional to speed and the relationship between them is not relevant and also the speed increase in two regions, from year 2012 and 2014. This confirms that the peak of solar cycle (24) really is double peak. All these investigations were employed as data base for the space agencies to protect the solar wind.
机译:通过使用SOHO板上的高能和相对论核电子(ERNE)检测器和大角度和光谱日冕仪(LASCO)分析了多年来(2012-2015)太阳周期(24)峰值的主要太阳能粒子事件。发现满足要求条件的事件数为82个事件。 LASCO提供有关中心位置角(CPA),角宽度(AW),相关冠状物质抛射(CME)的速度及其基本特征的信息,这些信息在数据库SOHO / LASCO中进行了分类。 ERNE提供了SEP对太阳周期(24)峰值的对数强度-时间曲线,并据此估计了注入时间,宽度,速度和起效时间。通过使用统计程序SPSS(版本19)对从这些光度分析得出的所有结果进行统计分析。已经得出的结论是,这些事件中有90%是CPA(360°)CPA,西北是1%,西南是4%,东北和东南是2%,并且发现39%的渐进事件和29冲动事件的百分比为32%,不是清晰事件,而高能粒子的加速度不仅在行星际,而且还在事件的位置。从这些事件的统计分析中我们发现,加速度与速度成反比,并且它们之间的关系不相关,并且从2012年到2014年这两个区域的速度也没有增加。这证实了太阳周期的峰值(24 )确实是双峰。所有这些调查被用作航天机构保护太阳风的数据库。

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