用SOHO/ERNE观测太阳高能粒子的多次爆发
Multi Eruption Solar Energetic Particle Events Observed with SOHO/ERNE
摘要：
许多太阳高能粒子（SEP）事件的组合，其中每一个都与一个单一的喷发，可以创建一个复杂的强度-时间分布，这将导致掩盖了对每个参与喷发的第一次注入粒子在地球附近检测到的观测。我们将这类SEP事件定义为多喷发太阳高能粒子（MESEP）事件。我们观测了SOHO任务期间333个太阳高能粒子事件的强度-时间剖面，研究了从每个事件开始到结束的关联太阳爆发（CME和太阳耀斑）。我们发现，大多数的事件有多喷发现象，可能会或可能不会影响强度-时间廓线。我们发现，通过研究最大可能的能量范围、$^4He/P$比和各向异性，有可能知道某些喷发在整个事件期间的真实影响，即使它们的影响被第一次喷发所掩盖。
英文摘要：
A combination of many Solar energetic particle (SEP) events, each one of which is associated with a single eruption, can create one complex intensity-time profile, that will result in masking the observation of the first injected particles detected near Earth for each participated eruption. We defined such SEP events as Multi Eruption Solar Energetic Particle (MESEP) events. We have investigated the intensity-time profile of 333 solar energetic particle events during the operation time of SOHO mission and studied the associative solar eruptions (CMEs and solar flare) from the starting time of each event till the end. We found that most of the events have multi eruption phenomena which might or might not affect the intensity-time profile. We found that it is possible to know the real effect of some of the eruptions during the whole duration of the event, even if their effect as masked by the first eruption, by studying the widest possible energy range, the $^4He/P$ ratio and the anisotropy.
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