Seeing the gravitational wave universe

Seeing the gravitational wave universe
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看到引力波宇宙

DOI:
10.1126/science.abq1187
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发表时间:
2022
期刊:
影响因子:
56.9
通讯作者:
Casey-Clyde, J. Andrew
Casey-Clyde, J. Andrew
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Mingarelli, Chiara M.;Casey-Clyde, J. Andrew

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引力波是时空结构中的涟漪,由黑洞合并等事件引起。原则上,许多类型的事件都会产生引力波,其频率从高至几千赫兹到低至几纳赫兹。纳赫兹频率范围内引力波的来源包括宇宙弦、早期宇宙的量子涨落,以及值得注意的超大质量黑洞双星(SMBHBs)。一些引力波源如此之多,以至于它们都被认为对引力波背景(GWB)有贡献。几十年来,这个GWB一直是脉冲星定时阵列(pta)的目标。
Gravitational waves are ripples in the fabric of spacetime that are caused by events such as the merging of black holes. In principle, many types of events occur that could create gravitational waves with frequencies ranging from as high as a few kilohertz to as low as a few nanohertz. Sources of gravitational waves in the nanohertz frequency range include cosmic strings, quantum fluctuations from the early Universe, and, notably, supermassive black hole binaries (SMBHBs). Some gravitational wave sources are so numerous that they are all expected to contribute to a gravitational wave background (GWB). This GWB has been the target of pulsar timing arrays (PTAs) for decades.
基于类星体的超大质量黑洞二元种群模型:对引力波背景的影响
DOI: 10.3847/1538-4357/ac32de
发表时间: 2022
期刊: The Astrophysical Journal
影响因子: --
作者:
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发表时间: 2017-09
影响因子: 4.8
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发表时间: 2021
期刊: The Astrophysical Journal
影响因子: --
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