论文标题
PSR J2030+4415的长丝
The Long Filament of PSR J2030+4415
论文作者
论文摘要
新的X射线和光学观察结果揭示了伽马射线PULSAR PSR 〜J2030+4415的显着X射线细丝。与其速度结构相比，过去十年中相关的H $α$弓冲击的演变的图像可改善$ \ sim $ 0.5Kpc。这些速度还表明，Pulsar旋转轴位于$ \ sim 15^\ Circ $中，来自靠近天空平面的正确运动轴。多泡震动结构表明，当脉冲星折断到当前的气泡时，弓形冲击阻滞被压缩到一个小价值$ \ sim 20-30 $ y。这种压缩允许多重脉冲星$ e^\ pm $逃脱到外部ISM，将外部磁场结构照亮为“丝”。狭窄的细丝表明了出色的初始限制，并且整个$ 15^\ prime $（$ 2.2 $ 〜pc = 7〜lt-y）的丝的长度表示快速$ e^\ pm $传播到其末端。沿细丝的光谱变化表明，在突破性事件中进化的注入颗粒能。
New X-ray and optical observations shed light on the remarkable X-ray filament of the Gamma-ray pulsar PSR~J2030+4415. Images of the associated H$α$ bow shock's evolution over the past decade compared with its velocity structure provide an improved kinematic distance of $\sim$0.5kpc. These velocities also imply that the pulsar spin axis lies $\sim 15^\circ$ from the proper motion axis which is close to the plane of the sky. The multi-bubble shock structure indicates that the bow shock stand-off was compressed to a small value $\sim 20-30$y ago when the pulsar broke through the bow shock to its present bubble. This compression allowed multi-TeV pulsar $e^\pm$ to escape to the external ISM, lighting up an external magnetic field structure as the `filament'. The narrow filament indicates excellent initial confinement and the full $15^\prime$ ($2.2$~pc=7~lt-y) projected length of the filament indicates rapid $e^\pm$ propagation to its end. Spectral variation along the filament suggests that the injected particle energy evolved during the break-through event.
