Searching for a Stochastic Background of Gravitational Waves with LIGO
Searching for a Stochastic Background of Gravitational Waves with LIGO
复制标题
使用 LIGO 寻找引力波的随机背景
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
L. S. Collaboration
中科院分区：
文献类型：
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作者：
L. S. Collaboration
激光干涉仪引力波天文台（LIGO）已经进行了第四次科学运行S4，与以前的运行相比，干涉仪的灵敏度有了显着提高。使用在这次科学运行中获得的数据，我们对引力波随机背景的振幅进行了限制。对于与频率无关的频谱，新的限制是Δ GW < 6。5 × 10 − 5。这是目前在51-150 Hz频率范围内最灵敏的结果，比之前的LIGO结果提高了13倍。我们讨论的互补性的新结果与其他约束的随机背景的引力波，我们调查的影响，新的结果不同的模型，这种背景。
The Laser Interferometer Gravitational-wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new limit is Ω GW < 6 . 5 × 10 − 5 . This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.