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arXiv 0710.4442astro-ph
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蟹状星云和船帆座星云的中子星序列和星震故障模型

Neutron star sequences and the starquake glitch model for the Crab and the Vela pulsars

P. S. Negi

摘要:

基于星震突变机制,首次构造了能同时解释蟹状星($Q \geq 0.7$)和船帆座星($Q \leq 0.2$)突变愈合参数$Q$的稳定中子星(NS)序列模型,而常规NS模型不能给出如此一致的解释.此外,我们的模型也产生了一个上限NS质量类似于在文献中获得的各种现代状态方程(EOS)兼容的因果关系和动力学稳定性。本文的结果给出了蟹状星云和船帆座星云引力红移电子正电子湮没线能量的上下限,分别为0.309 - 0.315 MeV和0.425 - 0.439 MeV。

英文摘要:

We construct for the first time, the sequences of stable neutron star (NS) models capable of explaining simultaneously, the glitch healing parameters, $Q$, of both the pulsars, the Crab ($Q \geq 0.7$) and the Vela ($Q \leq 0.2$), on the basis of starquake mechanism of glitch generation, whereas the conventional NS models cannot give such consistent explanation. Furthermore, our models also yield an upper bound on NS masses similar to those obtained in the literature for a variety of modern equations of state (EOSs) compatible with causality and dynamical stability. The results obtained in this paper set an upper and lower bound on the energy of a gravitationally redshifted electron-positron annihilation line in the range of about 0.309 - 0.315 MeV from the Crab and in the range of about 0.425 - 0.439 MeV from the Vela pulsar.

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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