论文标题
揭示带有X射线观测的Petaelectronvolt Proton加速器作为PetaelectRonvolt Proton加速器，揭示了一个奇特的超新星G106.3+2.7
Revealing a peculiar supernova remnant G106.3+2.7 as a petaelectronvolt proton accelerator with X-ray observations
论文作者
论文摘要
长期以来，超新星残留物（SNR）被认为是银河宇宙射线最有希望的来源之一。在SNR范式中，PetaelectRonvolt（PEV）质子加速度只能在早期演化阶段可行，持续数百年，而SNR冲击速度很高。尽管尚未发现支持年轻SNR中PEV质子加速的证据，但X射线同步加速器发射是快速冲击的重要指标。我们在这里报告了可能从可能中年SNR G106.3+2.7的X射线同步加速器发射的首次发现，这意味着尽管年龄，该SNR仍然是一个充满活力的粒子加速器。这一发现，以及环境环境信息，多波长观察和理论论点，支持SNR G106.3+2.7作为可能强大的PEV质子加速器。
Supernova remnants (SNRs) have long been considered as one of the most promising sources of Galactic cosmic rays. In the SNR paradigm, petaelectronvolt (PeV) proton acceleration may only be feasible at the early evolution stage, lasting a few hundred years, when the SNR shock speed is high. While evidence supporting the acceleration of PeV protons in young SNRs has yet to be discovered, X-ray synchrotron emission is an important indicator of fast shock. We here report the first discovery of X-ray synchrotron emission from the possibly middle-aged SNR G106.3+2.7, implying that this SNR is still an energetic particle accelerator despite its age. This discovery, along with the ambient environmental information, multiwavelength observation, and theoretical arguments, supports SNR G106.3+2.7 as a likely powerful PeV proton accelerator.
