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首页> 外文期刊>Cosmic research >Intensity Enhancements of 200-2000 MeV Protons in 1997-2005 as Measured by the KET/ULYSSES
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Intensity Enhancements of 200-2000 MeV Protons in 1997-2005 as Measured by the KET/ULYSSES

机译：由KET / ULYSSES测得的1997-2005年200-2000 MeV质子的强度增强

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摘要

Observations of solar protons with energy 40-80 MeV at various points of the three-dimensional heliosphere in 1997-2003 onboard the ULYSSES spacecraft were discussed in [1-3]. According to the interpretation suggested in [1 ], the source of solar cosmic rays (SCR) has the dimensions of more than 120° both in solar latitude and longitude, and the duration of its activity reaches several hours. If a magnetic field line connects the observer with the source, during the growth phase (the first 30-50 hours), the observable intensity corresponds to some local source, while there are large-scale SCR gradients in the interplanetary space. During the decay phase, when spatial gradients are small or absent ("the reservoir effect" [4]), the intensity is determined by the total number of protons injected into the heliosphere and by the rate of their escape from the tank [1]. In [2], proton intensity enhancements were observed near the ecliptic, recorded by the ULYSSES spacecraft when there was no magnetic connection with the source, and particles propagated up to a favorable field line only due to transverse diffusion in the interplanetary magnetic field (IMF). In this case, enhancements of intensity above the background were minimal or absent, and no "the reservoir effect" was observed. On the contrary, in all events considered in [3], 40-80 MeV protons were injected into the polar regions symmetrically about the equator with a small constant intensity, and no longitude dependence was found in this case.
机译：[1-3]讨论了在1997-2003年在ULYSSES航天器上在三维日光层各个点观测到的能量为40-80 MeV的太阳质子。根据[1]中提出的解释，太阳宇宙射线（SCR）的太阳经度和纬度均大于120°，其活动时间长达数小时。如果磁场线将观察者与辐射源连接起来，则在生长阶段（最初的30-50小时），可观察到的强度对应于某些本地辐射源，而在行星际空间中存在大规模的SCR梯度。在衰变阶段，当空间梯度较小或不存在时（“储层效应” [4]），强度取决于注入质子层的质子总数以及质子从储罐中逸出的速率[1]。 。在[2]中，在黄道附近观察到质子强度增强，当与源没有磁连接时，由ULYSSES航天器记录，并且仅由于行星际磁场（IMF）中的横向扩散，粒子传播到有利的场线）。在这种情况下，在背景之上的强度增强很小或不存在，并且没有观察到“储层效应”。相反，在[3]中考虑的所有事件中，均以较小的恒定强度将40-80 MeV质子对称于赤道对称地注入极区，在这种情况下未发现经度依赖性。

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  • 来源
    《Cosmic research》 |2007年第4期|368-372|共5页
  • 作者

    A. B. Struminsky;

  • 作者单位

    Space Research Institute, Russian Academy of Sciences, Profsoyuznaya ul. 84/32, Moscow, 117997 Russia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航天（宇宙航行）;
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