论文标题
W50形态和SS 433形成的动力学
W50 morphology and the dynamics of SS 433 formation
论文作者
论文摘要
SS 433的喷气机从形成紧凑物体的爆炸中穿过超新星残留物。进攻喷气机对超出壳之前的距离，大约40 pc下游，只是TEV伽马辐射的起源区域。 SNR腔中的环境压力可以实现准确的影响。我调查了W50形态和TEV伽马辐射的起源的条件，可以用准直的来解释，并由环境压力引起的相关冲击。我认为SNR的年龄以及当前的环境压力。腔现在是〜10^5年后的超新星。随着压力较低，准直和相关的冲击将发生〜40 pc下游，只是TEV伽马辐射的起源。二进制系统的演变建模表明，最近的Roche Lobe溢出和启动是最近的。直接遇到的直通量仍将发生〜40 pc，但是进液的锥角必须随时间增加 - 由罗氏叶溢流驱动。 W50的形态和TEV伽马辐射的起源部位很容易根据内部SNR压力对喷气机的直接来解释。
The jets of SS 433 have punched through the supernova remnant from the explosion forming the compact object. The precessing jets collimate before reaching beyond the shell, some 40 pc downstream, just the region of origin of TeV gamma radiation. Collimation could be effected by ambient pressure in the SNR cavity; I investigate conditions under which W50 morphology and the origins of TeV gamma radiation can be explained in terms of collimation, with associated shocks, induced by ambient pressure. I consider the age of the SNR and hence the present ambient pressure. The cavity is now ~ 10^5 years after the supernova; with lower pressure, collimation and associated shocks would occur ~40 pc downstream, just the origin of TeV gamma radiation. Modelling of evolution of binary systems indicates that Roche lobe overflow and initiation of the jets is recent. Collimation would still occur ~40 pc downstream, but the cone angle of the precession must then have increased with time - driven by the Roche lobe overflow. The morphology of W50 and the site of the origin of TeV gamma radiation are readily explained in terms of collimation of the jets by internal SNR pressure.
