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arXiv 1010.2849astro-ph.HE
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XRB中喷流与恒星风的相互作用

On the interaction of jets with stellar winds in XRBs

M. Perucho, V. Bosch-Ramon, D. Khangulyan

摘要:

我们提出了第一个三维模拟的双星系统内的微类星体喷流的演化。目的是研究这些喷流与来自大质量伴星的恒星风的相互作用以及高能发射点的可能位置。我们已经模拟了两个不同的喷射功率的射流,以给出一个提示的最小功率所需的射流逃离系统,并成为可见的更大的尺度。在设置中,我们包括一个巨大的星风填充网格通过喷射演变。我们表明,喷流应该有权力的顺序$10^{37}\rm{erg/s}$或更多,为了不被破坏的恒星风。喷流-风的相互作用导致了高能量发射的区域。这些结果意味着可能存在一个人口的X射线双星没有检测到的无线电波段,由于喷流中断内的区域占主导地位的恒星风。

英文摘要:

We present the first three-dimensional simulations of the evolution of a microquasar jet inside the binary-star system. The aim is to study the interaction of these jets with the stellar wind from a massive companion and the possible locations of high-energy emission sites. We have simulated two jets with different injection power in order to give a hint on the minimum power required for the jet to escape the system and become visible in larger scales. In the setup, we include a massive star wind filling the grid through which the jet evolves. We show that jets should have powers of the order of $10^{37}\rm{erg/s}$ or more in order not to be destroyed by the stellar wind. The jet-wind interaction results in regions in which high energy emission could be produced. These results imply the possible existence of a population of X-ray binaries not detected in the radio band due to jet disruption inside the region dominated by the stellar wind.

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