论文标题
局部星际光谱和宇宙射线电子和正电子的太阳能调制
Local interstellar spectra and solar modulation of cosmic ray electrons and positrons
论文作者
论文摘要
低能宇宙射线在太阳能活动中的传播中被调节，从而导致歧义是理解其在源头加速和以银河系的传播的歧义。通过$ e^ - $，$ e^+$，$ e^ - +e^+$，以及$ e^+/（$ e^+/（e^ - +e^+）$ spectra by AMS-02在地球附近，以及$ e^ - +e^ - +e^ - +e^+$ fluxs a local-unceptra的$ e^ - +e^+$ flux的$ e^ - +e^ - +e^ux unceptrare（我们）conflectrive（我们）和$ e^+$组件单独。我们的方法基于$ e^ - $和$ e^+$的LIS的非参数描述以及力场太阳能调制模型。然后，我们根据派生的LI和宇宙射线$ e^ - $和$ e^+$的每月通量获得太阳能调制参数的演变。 {\ bf可以更好地拟合每月数据，$ e^ - $和$ e^+$的其他重新归一化因素已乘以调制的通量。}我们发现，推断的太阳能调制参数与宇宙射线核的均匀范围和磁带的时间演化相对于电子的时间而异，并符合电子的时间进化。极性，清楚地显示了电荷符号依赖调制效果。
Low energy cosmic rays are modulated by the solar activity when they propagation in the heliosphere, leading to ambiguities in understanding their acceleration at sources and propagation in the Milky Way. By means of the precise measurements of the $e^-$, $e^+$, $e^-+e^+$, and $e^+/(e^-+e^+)$ spectra by AMS-02 near the Earth, as well as the very low energy measurements of the $e^-+e^+$ fluxes by Voyager-1 far away from the Sun, we derive the local interstellar spectra (LIS) of $e^-$ and $e^+$ components individually. Our method is based on a non-parametric description of the LIS of $e^-$ and $e^+$ and a force-field solar modulation model. We then obtain the evolution of the solar modulation parameters based on the derived LIS and the monthly fluxes of cosmic ray $e^-$ and $e^+$ measured by AMS-02. {\bf To better fit the monthly data, additional renormalization factors for $e^-$ and $e^+$ have been multiplied to the modulated fluxes.} We find that the inferred solar modulation parameters of positrons are in good agreement with that of cosmic ray nuclei, and the time evolutions of the solar modulation parameters of electrons and positrons differ after the reversal of the heliosphere magnetic field polarity, which shows clearly the charge-sign dependent modulation effect.
