论文标题
超新星残留SN 1006作为银河粒子加速器
The supernova remnant SN 1006 as a Galactic particle accelerator
论文作者
论文摘要
宇宙射线的起源是高能天体物理学的关键开放问题。超新星残留物是强大的候选人，是宇宙射线的银河系工厂，它们的爆炸波是强大的粒子加速器。但是，只有当它们将大量的动能转移到加速粒子上时，超新星残留物才能为观察到的宇宙射线的通量提供动力，但是仍然缺乏有关这种有效加速的结论性证据。在这种情况下，传递到宇宙射线的冲击能应引起比标准冲击条件预测的电击密度更高。在这里，我们通过分析了SN 1006的银河残留物的深度X射线观察，并探究了其对环境磁场方向的依赖。通过将我们的结果与最先进的模型进行比较，我们得出结论，SN 1006是宇宙射线的有效源，并获得了对Quasi-i-a Squasi-i-everational Supportation supertation Supportation superation Supportation。
The origin of cosmic rays is a pivotal open issue of high-energy astrophysics. Supernova remnants are strong candidates to be the Galactic factory of cosmic rays, their blast waves being powerful particle accelerators. However, supernova remnants can power the observed flux of cosmic rays only if they transfer a significant fraction of their kinetic energy to the accelerated particles, but conclusive evidence for such efficient acceleration is still lacking. In this scenario, the shock energy channeled to cosmic rays should induce a higher post-shock density than that predicted by standard shock conditions. Here we show this effect, and probe its dependence on the orientation of the ambient magnetic field, by analyzing deep X-ray observations of the Galactic remnant of SN 1006. By comparing our results with state-of-the-art models, we conclude that SN 1006 is an efficient source of cosmic rays and obtain an observational support for the quasi-parallel acceleration mechanism.
