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一阶引力相变产生的新型可观测信号

Novel Observable Signals from First-Order Gravitational Phase Transitions

Murat Özinan, Oğuzhan K. Yamak, Fethi M. Ramazanoğlu

arXiv 2608.02736首次发表:更新:

AI 中文总结

该研究指出一阶引力相变可产生强信号,通过吸积标量化中子星的引力波呼吸模式案例验证了这一点,为引力检验提供了新途径。

AI 中文摘要

自发标量化是标量-张量理论中广为人知的现象,表现出与广义相对论的大幅偏离,但部分信号难以探测,因其通常被视为连续相变研究。我们证明,在诸多天体物理相关场景中,标量化以不连续(一阶)方式发生,产生强信号,可用于检验引力。我们在吸积引发标量化的中子星引力波呼吸模式案例中验证了这一点,并探讨了其他可能性。

英文摘要

Spontaneous scalarization is a well-known phenomenon in scalar-tensor theories, featuring large deviations from general relativity. However, some of its signatures are hard to detect, because it is generally studied as a continuous phase transition. We show that scalarization occurs in a discontinuous (first-order) manner in many astrophysically relevant scenarios. This leads to loud signals that provide new tests of gravity. We demonstrate this in the case of gravitational wave breathing modes from a neutron star that scalarizes due to accretion, and discuss other possibilities.

Comments5+3 pages, 4 figures

论文原文

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