论文标题
SS433-W50系统中的质量流及其行为
Mass flows and their behaviors in the SS433--W50 system
论文作者
论文摘要
我们提出了解释SS433-W50系统的整体观察特征的方案。 SS433最独特的特征是前进性，轻度相对论的喷气机和中央发动机的晦涩，这被认为是由于中央紧凑型物体的超临界物质引起的。喷气机可能会从积聚流的最内向区域弹出。积聚环的概念（Inoue 2021，pasj，73,795）应用于吸积流的外边界，并且该环应具有进攻。预计积环将延长薄排泄盘和厚的排泄流以及吸积流的两层流出。讨论了薄的排泄盘，最终沿着紧凑型物体沿Roche叶形成光学厚的排泄带，从而有助于中央发动机的晦涩。厚的排泄流很可能转向超音速风（磁盘风），终端速度为$ \ sim 10^{8} $ cm s $ s $^{ - 1} $，并在$ \ sim 10^{18} $ cm的距离内与SNR物质碰撞。喷气机与磁盘风的相互作用被认为会导致在10 $^{14} \ sim 10^{15} $ cm和$ \ sim 10^{17} $ cm处观察到的喷气机的功能。最后，讨论了喷气机是由SNR物质在$ \ sim $ 10 pc的距离上刹车，并且喷气机携带的动量被转移到射流推动的SNR物质上。预计将SNR物质推向进型锥的内部，将沿着锥轴聚集，并从主要W50结构中形成东部和西方的细长结构。
We propose the scenario to interpret the overall observational features of the SS433--W50 system. The most unique features of SS433 are the presence of the precessing, mildly relativistic jets and the obscuration of the central engine, which are considered to be due to a supercritical accretion on to the central compact object. The jets are likely to be ejected from the innermost region of the accretion flow. The concept of the accretion ring (Inoue 2021, PASJ, 73,795) is applied to the outer boundary of the accretion flow and the ring is supposed to have a precession. The accretion ring is expected to extend a two-layer outflow of a thin excretion disk and a thick excretion flow, as well as the accretion flow. The thin excretion disk is discussed to eventually form the optically thick excretion belt along the Roche lobe around the compact object, contributing to the obscuration of the central engine. The thick excretion flow is likely to turn to the supersonic wind (disk wind) with the terminal velocity of $\sim 10^{8}$ cm s$^{-1}$ and to collide with the SNR matter at the distance of $\sim 10^{18}$ cm. The interactions of the jets with the disk wind are considered to cause the features of the jets observed at the distances of 10$^{14} \sim 10^{15}$ cm and $\sim 10^{17}$ cm. Finally, it is discussed that the jets are braked by the SNR matter at the distance of $\sim$10 pc and the momentum carried by the jet is transferred to the SNR matter shoved by the jet. The SNR matter pushed to the inside of the precession cone is expected to gather along the cone axis and to form the elongated structures in the east and west directions from the main W50 structure.
