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arXiv 2609.19500gr-qcastro-ph.COastro-ph.HEhep-ph

超轻暗物质引起的相对论性恒星振荡

Relativistic Stellar Oscillations from Ultralight Dark Matter

Shanae Oishi, Christopher Reyes, Jeremy Sakstein

中文总结 AI 辅助

本文研究超轻暗物质共振激发相对论性恒星振荡,推导模式振幅计算框架并应用于中子星预测表面温度波动,信号超出当前观测能力,并展望扩展到其他致密天体。

中文摘要 AI 辅助

由表现为经典波的玻色子组成的超轻暗物质,可以共振激发恒星振荡。在本工作中,我们研究了相对论性恒星中的这一现象,表明ℓ=0流体模式可以被激发。我们推导了一个计算模式振幅的框架,并将其应用于中子星,以预测相关的表面温度波动;由此产生的信号超出了当前观测灵敏度。我们讨论了将该方法扩展到其他致密天体的前景。

英文摘要

Ultra-light dark matter, composed of bosons behaving as classical waves, can resonantly excite stellar oscillations. In this work, we investigate this phenomenon in relativistic stars, showing that $\ell=0$ fluid modes can be excited. We derive a framework for calculating the mode amplitude and apply it to neutron stars to predict the associated surface temperature fluctuations; the resulting signal lies beyond current observational sensitivities. We discuss prospects for extending this approach to other compact objects.

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