差转中子星的最大质量和稳定性

Q4 Physics and Astronomy

Acta Physica Polonica B, Proceedings Supplement Pub Date : 2023-02-12 DOI:10.5506/aphyspolbsupp.16.6-a8

P. Szewczyk, Dorota Gondek-Rosi'nska, P. Cerd'a-Dur'an

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引用次数: 1

摘要

我们研究了用多元状态方程$\Gamma = 2$描述的微分旋转轴对称中子星的稳定性。我们关注具有微分旋转度a =1的拟环面解。我们的研究结果表明，对于大范围的参数，超大质量、准环形中子星在准径向扰动下是动态稳定的，这可能对新生中子星和双中子星合并有影响。

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Maximum Mass and Stability of Differentially Rotating Neutrons Stars

We present our study of stability of differentially rotating, axisymmetric neutron stars described by a polytropic equation of state with $\Gamma = 2$. We focus on quasi-toroidal solutions with a degree of differential rotation $\widetilde A=1$. Our results show that for a wide range of parameters hypermassive, quasi-toroidal neutron stars are dynamically stable against quasi-radial perturbations, which may have implications for newly born neutron stars and binary neutron stars mergers.

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来源期刊

Acta Physica Polonica B, Proceedings Supplement Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.50

自引率

0.00%

发文量