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arXiv 1807.08249astro-ph.CO
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弱宇宙透镜的宇宙学参数

Cosmological parameters from weak cosmological lensing

Martin Kilbinger

摘要:

在这份人类发展报告(HDR)的手稿中,作者介绍了他过去十年的一些工作。本论文的主要研究内容是宇宙剪切,即宇宙中的大尺度结构对遥远星系的弱引力透镜作用所产生的图像畸变。宇宙剪切已成为研究暗物质本质和当前宇宙加速膨胀起源的有力工具。在过去的几年里,宇宙剪切已经发展成为一种可靠和强大的宇宙学探测器,提供了宇宙膨胀历史及其结构增长的测量。我回顾了弱引力透镜的原理,并展示了如何在宇宙学的背景下解释宇宙剪切。然后,我给出了弱透镜测量的概述,并从加拿大-法国夏威夷透镜巡天(CFHTLenS)的观测结果,以及宇宙学的影响。最后,我展望了未来的各种调查和任务,宇宙剪切是主要的科学驱动力之一,并讨论了有前途的新的弱宇宙透镜技术,为未来的观测。

英文摘要:

In this manuscript of the habilitation à diriger des recherches (HDR), the author presents some of his work over the last ten years. The main topic of this thesis is cosmic shear, the distortion of images of distant galaxies due to weak gravitational lensing by the large-scale structure in the Universe. Cosmic shear has become a powerful probe into the nature of dark matter and the origin of the current accelerated expansion of the Universe. Over the last years, cosmic shear has evolved into a reliable and robust cosmological probe, providing measurements of the expansion history of the Universe and the growth of its structure. I review the principles of weak gravitational lensing and show how cosmic shear is interpreted in a cosmological context. Then I give an overview of weak-lensing measurements, and present observational results from the Canada-France Hawai'i Lensing Survey (CFHTLenS), as well as the implications for cosmology. I conclude with an outlook on the various future surveys and missions, for which cosmic shear is one of the main science drivers, and discuss promising new weak cosmological lensing techniques for future observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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