arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2609.27559astro-ph.COgr-qchep-ph

德布罗意机制下暗物质引起的恒星振荡

Dark Matter-Induced Stellar Oscillations in the de Broglie Regime

  • Deutsches Elektronen-Synchrotron DESY(德国电子同步加速器)
  • Kavli IPMU (WPI), UTIAS, University of Tokyo(卡弗里宇宙物理起源研究所(WPI),东京大学先端科学技术研究中心)
  • Department of Physics & Astronomy, University of Hawai ‘ i(夏威夷大学物理与天文学系)

机构由 AI 辅助整理,请以论文原文为准。

Qiuyue Liang, Jeremy Sakstein

中文总结 AI 辅助

研究超轻暗物质在德布罗意机制下通过时变引力势激发恒星振荡,发现太阳及其他恒星的信号远低于当前探测灵敏度。

中文摘要 AI 辅助

我们研究了在德布罗意机制下,由超轻暗物质(ULDM)的时变引力势驱动的恒星振荡。响应由ULDM相干时间与恒星模式阻尼时间之比控制。当场退相干速度快于阻尼时间时,ULDM充当随机源,激发特征德布罗意频率以下的模式,而更高频率的模式被抑制。在相反的长时间相干机制中,单个模式可以被共振驱动。聚焦于太阳振荡,我们发现信号远低于当前灵敏度,并估计其他恒星同样不太可能提供可观测信号。

英文摘要

We investigate stellar oscillations driven by the time-dependent gravitational potential of ultralight dark matter (ULDM) in the de Broglie regime. The response is controlled by the ratio of the ULDM coherence time to the stellar mode damping time. When the field decoheres faster than the damping time, ULDM acts as a stochastic source that excites modes below a characteristic de Broglie frequency, while higher-frequency modes are suppressed. In the opposite, long-coherence regime, individual modes can be resonantly driven. Focusing on solar oscillations, we find a signal far below current sensitivity, and estimate that other stars are similarly unlikely to provide observable signals.

↑