Distance measures in gravitational-wave astrophysics and cosmology
Distance measures in gravitational-wave astrophysics and cosmology
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DOI：
10.1088/1361-6382/abd594
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发表时间：
2017-09
影响因子：
3.5
通讯作者：
Hsin-Yu Chen;D. Holz;John B. Miller;M. Evans;S. Vitale;J. Creighton
中科院分区：
文献类型：
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作者：
Hsin-Yu Chen;D. Holz;John B. Miller;M. Evans;S. Vitale;J. Creighton
我们提出的数量的特征的引力波天文台的灵敏度源在宇宙学的距离。特别是，我们介绍和推广的地平线，范围，响应和到达距离。这些量包含了许多重要的效应，包括宇宙学定义的距离和体积、宇宙学红移、宇宙学时间膨胀和速率密度演化。此外，这些量还包含了引力波探测器的独特方面，例如探测器的可变天空灵敏度以及与距离成反比的灵敏度缩放。可以使用在线计算器（https：//users.rcc.uchicago.edu/pytholz/gwc/）和python notebook（https：//github.com/hsinyuc/distancetool）来确定GW距离。我们提供了这个问题的答案：“引力波探测器能听到多远？”
We present quantities which characterize the sensitivity of gravitational-wave observatories to sources at cosmological distances. In particular, we introduce and generalize the horizon, range, response, and reach distances. These quantities incorporate a number of important effects, including cosmologically well-defined distances and volumes, cosmological redshift, cosmological time dilation, and rate density evolution. In addition, these quantities incorporate unique aspects of gravitational wave detectors, such as the variable sky sensitivity of the detectors and the scaling of the sensitivity with inverse distance. An online calculator (https://users.rcc.uchicago.edu/~dholz/gwc/) and python notebook (https://github.com/hsinyuc/distancetool) to determine GW distances are available. We provide answers to the question: ‘How far can gravitational-wave detectors hear?’