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arXiv 0812.1762gr-qc
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自引力吸积流的稳定性

On the stability of self-gravitating accreting flows

Patryk Mach, Edward Malec

摘要:

分析方法表明稳定的静态吸积的测试流体,但他们是不确定的情况下,自引力静止流。我们研究这些稳定的流动到紧凑的物体,是跨音速和丰富的气体的数值稳定性。在所有研究的例子中,溶液都是稳定的。数值研究还表明,声波和事件视界之间的类比适用于小扰动的紧凑的支持,但在有限扰动的情况下失败。

英文摘要:

Analytic methods show stability of the stationary accretion of test fluids but they are inconclusive in the case of self-gravitating stationary flows. We investigate numerically stability of those stationary flows onto compact objects that are transonic and rich in gas. In all studied examples solutions appear stable. Numerical investigation suggests also that the analogy between sonic and event horizons holds for small perturbations of compact support but fails in the case of finite perturbations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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