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arXiv 2407.12914gr-qcastro-ph.COhep-th
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具有破缺幂律峰值的标量扰动诱导的引力波

Gravitational Waves Induced by Scalar Perturbations with a Broken Power-law Peak

Chong-Zhi Li, Chen Yuan, Qing-guo Huang

AI总结:

本文提出了破缺幂律功率谱下标量诱导引力波能量谱的解析近似,揭示了其渐近尾部与中间峰值的特征,为引力波数据分析提供了快速生成谱的有效工具。

摘要:

我们给出了由破缺幂律功率谱产生的标量诱导引力波(SIGWs)能量谱的解析近似,并发现渐近幂律尾部和中间峰值都对SIGW谱贡献了独特特征。此外,破缺幂律功率谱具有丰富的近峰特征,我们的结果可作为覆盖广泛模型的近峰近似。该解析近似有助于快速生成SIGW能量谱,对引力波数据分析十分有益。

英文摘要:

We give an analytical approximation for the energy spectrum of the scalar-induced gravitational waves (SIGWs) generated by a broken power-law power spectrum, and find that both the asymptotic power-law tails and the intermediate peak contribute distinct features to the SIGW spectrum. Moreover, the broken power-law power spectrum has abundant near-peak features and our results can be used as a near-peak approximation that covers a wide range of models. Our analytical approximation is useful in the rapid generation of the SIGW energy spectrum, which is beneficial for gravitational wave data analysis.

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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