论文标题
在整个太阳能周期中，太阳能磁盘伽玛射线的首次观察
First Observations of Solar Disk Gamma Rays over a Full Solar Cycle
论文作者
论文摘要
太阳能磁盘是天空中最明亮的伽马射线源之一。它也是最神秘的。没有现有模型完全解释其发射的光度，光谱，时间变异性和形态。我们在整个11年的太阳能周期中对太阳能磁盘伽玛射线进行了首次分析，利用强大的新方法将太阳能信号与天体物理背景区分开。我们生产：（i）从100 MEV到100 GEV的稳健测量的频谱，在1-10 GEV范围内达到了几个百分比的精度，（ii）关于太阳能活动和伽马射线排放和伽马射线排放之间的抗相关性的新结果，（iii）在短时间内的可变性（III）范围内，以及（iv）的高度范围（IV）等于（IV）的范围。伽玛射线。有趣的是，我们发现在太阳磁盘发射的时间变化中没有明显的能量依赖性，这表明靠近太阳能表面的强磁场效应，而不是整个地球层的调节，必须主要控制太阳能磁盘发射的通量和形态。
The solar disk is among the brightest gamma-ray sources in the sky. It is also among the most mysterious. No existing model fully explains the luminosity, spectrum, time variability, and morphology of its emission. We perform the first analysis of solar-disk gamma rays over a full 11-year solar cycle, utilizing a powerful new method to differentiate solar signals from astrophysical backgrounds. We produce: (i) a robustly measured spectrum from 100 MeV to 100 GeV, reaching a precision of several percent in the 1-10 GeV range, (ii) new results on the anti-correlation between solar activity and gamma-ray emission, (iii) strong constraints on short-timescale variability, ranging from hours to years, and (iv) new detections of the equatorial and polar morphologies of high-energy gamma rays. Intriguingly, we find no significant energy dependence in the time variability of solar-disk emission, indicating that strong magnetic-field effects close to the solar surface, rather than modulation throughout the heliosphere, must primarily control the flux and morphology of solar-disk emission.
