论文标题

强烈的表面流出在积聚盘上

Strong surface outflows on accretion discs

论文作者

Nixon, C. J., Pringle, J. E.

论文摘要

为了解释尼克松和普林格(Nixon&Pringle(2019))提出,通过强,磁性驱动的表面流量将积聚能向外重新分布。在本文中,我们注意到,在黑洞X射线二进制文件的柔软状态下观察到的“强大的,旋转的圆盘风”,以及在其X-1中的磁化中子恒星周围的盘子中观察到的,具有尼克松和普林格(Nixon&Pringle)假定的流出的特性,可以存在于Nova类似于Nova的变量促销盘中。相关的特性是流不是风,而是绑定的流量(以低于逃生速度行驶),并且流中的质量通量是圆盘中吸积率的很大一部分。

In order to provide an explanation for the unexpected radial brightness distribution of the steady accretion discs seen in nova-like variables, Nixon & Pringle (2019) proposed that the accretion energy is redistributed outwards by means of strong, magnetically driven, surface flows. In this paper we note that the "powerful, rotating disc winds" observed in the soft states of black hole X-ray binaries, and also in the disc around a magnetized neutron star in Her X-1, have the properties of the outflows postulated by Nixon & Pringle to exist in the nova-like variable accretion discs around white dwarfs. The relevant properties are that the flows are not winds, but are, instead, bound flows (traveling at less than the escape velocity) and that the mass fluxes in the flows are a substantial fraction of the accretion rate in the disc.

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