Gravitational wave luminosity distance-weighted anisotropies

IF 5.3 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Andrea Begnoni, Lorenzo Valbusa Dall'Armi, Daniele Bertacca and Alvise Raccanelli
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引用次数: 0

Abstract

Measurements of the luminosity distance of propagating gravitational waves can provide invaluable information on the geometry and content of our Universe. Due to the clustering of cosmic structures, in realistic situations we need to average the luminosity distance of events coming from patches inside a volume. In this work we evaluate, in a gauge-invariant and fully-relativistic treatment, the impact of cosmological perturbations on such averaging process. We find that clustering, lensing and peculiar velocity effects impact estimates for future detectors such as Einstein Telescope, Cosmic Explorer, the Big Bang Observer and DECIGO. The signal-to-noise ratio of the angular power spectrum of the average luminosity distance over all the redshift bins is 17 in the case of binary black holes detected by Einstein Telescope and Cosmic Explorer. We also provide fitting formulas for the corrections to the average luminosity distance due to general relativistic effects.
引力波光度距离加权各向异性
测量引力波传播的光距可以提供有关我们宇宙的几何形状和内容的宝贵信息。由于宇宙结构的群集性,在现实情况下,我们需要平均来自一个体积内的斑块的事件的发光距离。在这项研究中,我们以规不变和全相对论的方法评估了宇宙学扰动对这种平均过程的影响。我们发现聚类、透镜和奇特速度效应会影响未来探测器的估计值,如爱因斯坦望远镜、宇宙探测器、大爆炸观测器和 DECIGO。在爱因斯坦望远镜和宇宙探测器探测到双黑洞的情况下,所有红移箱内平均光度距离角功率谱的信噪比为 17。我们还提供了广义相对论效应对平均光距修正的拟合公式。
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来源期刊
Journal of Cosmology and Astroparticle Physics
Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理
CiteScore
10.20
自引率
23.40%
发文量
632
审稿时长
1 months
期刊介绍: Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.
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