Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing.

IF 11.3 1区化学 Q1 CHEMISTRY, PHYSICAL

ACS Catalysis Pub Date : 2024-01-01 Epub Date: 2024-06-17 DOI:10.1007/s11214-024-01079-w

S Birrer, M Millon, D Sluse, A J Shajib, F Courbin, S Erickson, L V E Koopmans, S H Suyu, T Treu

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引用次数: 0

Abstract

Multiply lensed images of a same source experience a relative time delay in the arrival of photons due to the path length difference and the different gravitational potentials the photons travel through. This effect can be used to measure absolute distances and the Hubble constant ( $H_{0}$ ) and is known as time-delay cosmography. The method is independent of the local distance ladder and early-universe physics and provides a precise and competitive measurement of $H_{0}$ . With upcoming observatories, time-delay cosmography can provide a 1% precision measurement of $H_{0}$ and can decisively shed light on the current reported 'Hubble tension'. This manuscript details the general methodology developed over the past decades in time-delay cosmography, discusses recent advances and results, and, foremost, provides a foundation and outlook for the next decade in providing accurate and ever more precise measurements with increased sample size and improved observational techniques.

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时延宇宙学：利用强引力透镜测量哈勃常数和其他宇宙学参数。

同一光源的多重透镜图像在光子到达时会出现相对的时间延迟，这是由于光子经过的路径长度差异和重力势能不同造成的。这种效应可用于测量绝对距离和哈勃常数（H 0），被称为时间延迟宇宙学。这种方法不受本地距离阶梯和早期宇宙物理学的影响，可以精确地测量哈勃常数。通过即将建成的天文台，时间延迟宇宙学可以对 H 0 进行 1% 的精确测量，并对目前报道的 "哈勃张力 "做出决定性的解释。这篇手稿详细介绍了过去几十年来在时间延迟宇宙学方面发展起来的一般方法，讨论了最近的进展和结果，最重要的是为下一个十年提供了基础和展望，以便随着样本量的增加和观测技术的改进，提供更精确的测量结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Catalysis CHEMISTRY, PHYSICAL-

CiteScore

20.80

自引率

6.20%

发文量

1253

审稿时长

1.5 months

期刊介绍： ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels. The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.