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首页> 外文期刊>The Astrophysical journal >Collimated outflow formation via binary stars: Three-dimensional simulations of asymptotic giant branch wind and disk wind interactions
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Collimated outflow formation via binary stars: Three-dimensional simulations of asymptotic giant branch wind and disk wind interactions

机译：通过双星的准直流形成：渐近巨分支风和盘风相互作用的三维模拟

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We present three-dimensional hydrodynamic simulations of the interaction of a slow wind from an asymptotic giant branch (AGB) star and a jet blown by an orbiting companion. The jet or "collimated fast wind" is assumed to originate from an accretion disk that forms via Bondi accretion of the AGB wind or Roche lobe overflow. We present two distinct regimes in the wind-jet interaction determined by the ratio of the AGB wind to jet momentum flux. Our results show that when the wind momentum flux overwhelms the flux in the jet, a more disordered outflow results with the jet assuming a corkscrew pattern and multiple shock structures driven into the AGB wind. In the opposite regime, the jet dominates and will drive a highly collimated, narrow-waisted outflow. We compare our results with scenarios described by Soker & Rappaport and extrapolate to the structures observed in planetary nebulae (PNs) and symbiotic stars. [References: 30]
机译：我们提出了一个渐进巨支（AGB）恒星与一架轨道伴星吹动的喷气机相互作用的三维水动力模拟。假定急流或“准直强风”起源于吸积盘，该吸积盘是通过AGB风或罗氏裂片溢流的邦迪吸积形成的。我们介绍了由AGB风与射流动量通量之比确定的两种不同的风射相互作用机制。我们的结果表明，当风的动量通量超过喷头中的通量时，喷头采用开瓶器模式和被引入AGB风中的多种冲击结构会导致更加混乱的流出。在相反的情况下，射流占主导地位，并将推动高度准直的窄腰流出。我们将我们的结果与Soker＆Rappaport所描述的情景进行比较，并推断出行星状星云（PNs）和共生恒星中观测到的结构。 [参考：30]

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