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arXiv 1402.1444astro-ph.HE
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具有非刚性核的类星体的自旋演化

The spin evolution of the pulsars with non-rigid core

D. P. Barsukov, O. A. Goglichidze, A. I. Tsygan

摘要:

考虑到中子星自转的非刚性,建立了脉冲星自转演化(制动、倾角演化和辐射旋进)模型。我们讨论了这个模型的两个简单的限制情况下,并表明,倾角的演变基本上取决于壳核相互作用的模型。核转动的非刚性加速了倾角的演化,使所有的核都演化到正交态。影响的大小取决于差异旋转物质的数量及其与恒星其余部分相互作用的机制。由于倾角的快速演化与观测数据明显矛盾,我们的结果可作为对中子星核理论的一个补充检验。

英文摘要:

We formulate a model of pulsar spin evolution (braking, inclination angle evolution and radiative precession) taking into account the non-rigidity of neutron star rotation. We discuss two simple limiting cases of this model and show that the evolution of the inclination angle substantially depends on the model of crust-core interaction. The non-rigidity of core rotation accelerates the inclination angle evolution and makes all pulsars evolve to the orthogonal state. The size of the effect depends on the amount of differentially rotating matter and mechanism of its interaction with the rest of the star. Since the rapid volution of the inclination angle apparently contradicts the observational data, our results may be used as an additional test for the theories of the cores of neutron stars.

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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