Binary systems of Population III can evolve to microquasars when one of the stars collapses into a black hole. When the compact object accretes matter at a rate greater than the Eddington rate, powerful jets and winds driven by strong radiation pressure should form. We investigate the structure of the jet-wind system for a model of Population III microquasar on scales beyond the jet-wind formation region. Using relativistic hydrodynamic simulations we find that the ratio of kinetic power between the jet and the disk wind determines the configuration of the system. When the power is dominated by the wind, the jet fills a narrow channel, collimated by the dense outflow. When the jet dominates the power of the system, part of its energy is diverted turning the wind into a quasi-equatorial flow, while the jet widens. From the results of our simulations, we implement semi-analytical calculations of the impact of the quasi-equatorial wind on scales of the order of the size of the binary system. Our results indicate that Population III microquasars might inject gamma rays and relativistic particles into the early intergalactic medium, contributing to its reionization at large distances from the binary system.

中文翻译：

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群体 III 微类星体中由喷流驱动的赤道外流

当其中一颗恒星坍缩成黑洞时，第三族群的双星系统可以演化为微类星体。当致密物体以大于爱丁顿速率的速率吸积物质时，应形成由强辐射压力驱动的强大喷流和风。我们研究了喷射风形成区域以外尺度上的种群 III 微类星体模型的喷射风系统的结构。使用相对论流体动力学模拟，我们发现射流和圆盘风之间的动能比决定了系统的配置。当功率由风主导时，射流充满狭窄的通道，由密集的流出物准直。当射流主导系统的功率时，它的部分能量被转移，将风变成准赤道流，同时射流变宽。根据我们的模拟结果，我们对准赤道风对双星系统大小数量级的影响进行了半解析计算。我们的结果表明，Population III 微类星体可能会将伽马射线和相对论粒子注入早期的星系际介质，导致其在距离双星系统很远的地方再电离。