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arXiv 0705.1565gr-qcastro-phhep-th
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爱因斯坦-以太理论中的中子星

Neutron stars in Einstein-aether theory

Christopher Eling, Ted Jacobson, M. Coleman Miller

摘要:

随着当前和未来的实验探索中子星和黑洞周围的强引力机制,人们希望有理论上合理的广义相对论替代品来检验观测结果。在这里,我们研究的后果,这样的推广,爱因斯坦以太理论,为非旋转中子星的性质。该理论具有满足所有当前弱场测试的参数范围。我们发现,在这个范围内,它导致较低的最大中子星质量,以及较大的表面红移在特定的质量,对于一个给定的核物质状态方程。对于非旋转的黑洞和中子星,最内层的稳定圆轨道在这个理论中只作了轻微的修改。

英文摘要:

As current and future experiments probe strong gravitational regimes around neutron stars and black holes, it is desirable to have theoretically sound alternatives to general relativity against which to test observations. Here we study the consequences of one such generalization, Einstein-aether theory, for the properties of non-rotating neutron stars. This theory has a parameter range that satisfies all current weak-field tests. We find that within this range it leads to lower maximum neutron star masses, as well as larger surface redshifts at a particular mass, for a given nuclear equation of state. For non-rotating black holes and neutron stars, the innermost stable circular orbit is only slightly modified in this theory.

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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