约束银河系核区黑洞双星并合中的超轻标量场
Constraining Ultralight Scalars with Black Hole Binary Mergers in Galactic Nuclei
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中文总结 AI 辅助
本文研究超轻标量场通过超辐射云增强黑洞双星并合率，并利用GWTC-5数据中低质量比事件约束其质量范围，补充自旋测量方法。
中文摘要 AI 辅助
超轻标量场可以在旋转黑洞周围形成长寿命的宏观束缚态，即超辐射云。这些云在近距离遭遇过程中提供了额外的能量耗散通道，从而增强了致密环境（如银河系核区）中黑洞双星的形成与并合率。我们表明，LIGO-Virgo-KAGRA GWTC-5目录中质量比低于$3/10$的并合事件率可以探测质量范围在$[4\ imes 10^{-14},10^{-13}]$ eV内的超轻标量场，补充了基于黑洞自旋测量的现有策略。
英文摘要
Ultralight scalars can form long-lived, macroscopic bound states around spinning black holes, known as superradiance clouds. These clouds provide an additional channel for energy dissipation during close encounters, enhancing the black hole binary formation and merger rates in dense environments such as galactic nuclei. We show that the rate of mergers with mass ratio below $3/10$ in the LIGO-Virgo-KAGRA GWTC-5 catalog can probe ultralight scalars in the mass range $[4\times 10^{-14},10^{-13}]$ eV, complementing existing strategies based on black hole spin measurements.
发表机构
- Racah Institute of Physics, Hebrew University of Jerusalem（雷卡物理研究所，耶路撒冷希伯来大学）
- Department of Astronomy, University of Wisconsin, Madison（威斯康星大学麦迪逊分校天文学系）
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