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arXiv 1409.8075astro-ph.HEastro-ph.SRnucl-th
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年轻快速旋转恒星r模稳定性的机制

Mechanism of r-mode stability in young rapidly rotating pulsars

E. E. Kolomeitsev, D. N. Voskresensky

摘要:

我们证明,在年轻的快速旋转的类星体的r-模式的稳定性可能会得到解释,如果考虑到强介质修改的核子-核子相互作用,因为在致密的核子物质的软化的π自由度。不需要有效的直接Urca过程。在我们的模型中,观测到的旋转最快的年轻脉冲星PSR J 0537 -6910的质量应该是$\geq 1.8M_{\odot}$。

英文摘要:

We demonstrate that stability of r-modes in young rapidly rotating pulsars might be explained if one takes into account strong medium modifications of the nucleon-nucleon interaction because of the softening of pionic degrees of freedom in dense nucleon matter. Presence of the efficient direct Urca processes is not required. Within our model the most rapidly rotating observed young pulsar PSR J0537-6910 should have the mass $\geq 1.8M_{\odot}$.

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