论文标题
关于太阳能颗粒中能光谱与元素丰度之间的相关性
On the Correlation between Energy Spectra and Element Abundances in Solar Energetic Particles
论文作者
论文摘要
在太阳能粒子（SEP）事件中，冲击加速度和运输过程中散射的物理过程可能会导致能量传播指标与增强或抑制元素丰度相对于质量到电荷比的增强或抑制A/Q相关。我们观察到那些“逐渐”的SEP事件的相关性，在这些事件中，冲击波从环境等离子体中加速离子，但是没有这种“冲动性” Sep事件的相关性是太阳能喷气机中的磁性重新连接产生的，其中在不同事件中的丰度增强在不同的事件中与（a/q）^+2至（a/q）^+8，a/q/q a/q a的相关性不同。离子。在这些后一种事件中，在加速光谱之前分别确定了丰度。具有相关光谱和丰度的事件显示出多种有趣的行为，这尚未描述。小且中等逐渐的SEP事件，相对丰度通常取决于（a/q）^-1，而光谱在能量e^-2.5上，随着时间的流逝几乎没有变化。大型SEP事件显示了相关线的巨大时间变化。在一个情况下，o频谱随时间从e^-1到e^-5而变化，而事件期间的丰度则与（a/q）^+1到（a/q）^-2不同。在非常大的事件中，通过质子生成的谐振alfve'n波流式传输的传输使光谱变平，并在局部冲击通道之前增强了沉重的离子丰度，然后使光谱浸泡并减少了增强功能，从而恢复了典型的相关性。光谱和元素丰度的系统相关性为通过冲击和SEP加速和运输的物理学选择离子选择的“注入问题”提供了新的观点。
In solar energetic particle (SEP) events, the physical processes of both shock acceleration and scattering during transport can cause energy-spectral indices to be correlated with enhancement or suppression of element abundances versus mass-to-charge ratios A/Q. We observe correlations for those "gradual" SEP events where shock waves accelerate ions from the ambient coronal plasma, but there are no such correlations for "impulsive" SEP events produced by magnetic reconnection in solar jets, where abundance enhancement in different events vary from (A/Q)^+2 to (A/Q)^+8, nor are there correlations when shock waves reaccelerate these residual impulsive ions. In these latter events the abundances are determined separately, prior to the accelerated spectra. Events with correlated spectra and abundances show a wide variety of interesting behavior that has not been described previously. Small and moderate gradual SEP events, with relative abundances typically depending approximately upon (A/Q)^-1 and the spectra upon energy E^-2.5, vary little with time. Large SEP events show huge temporal variations skirting the correlation line; in one case O spectra vary with time from E^-1 to E^-5 while abundances vary from (A/Q)^+1 to (A/Q)^-2 during the event. In very large events, streaming-limited transport through proton-generated resonant Alfve'n waves flattens the spectra and enhances heavy ion abundances prior to local shock passage, then steepens the spectra and reduces enhancements afterward, recapturing the typical correlation. Systematic correlation of spectra and element abundances provide a new perspective on the "injection problem" of ion selection by shocks and on the physics of SEP acceleration and transport.
