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New Extragalactic Research Paths Opened by Planck

The Fifteenth Marcel Grossmann Meeting(2022)

INAF | Cardiff Univ

Cited 0|Views32
Abstract
The Planck mission has clearly demonstrated that, although not specifically designed for the observation of extragalactic sources, the space-borne experiments aimed at investigating the Cosmic Microwave Background (CMB) have the potential to bring breakthrough science also in this field. One example is the detection of high-z galaxies with extreme gravitational amplifications. The combination of flux boosting and of stretching of the images has allowed the investigation of the structure of galaxies at z similar or equal to 3 with the astounding spatial resolution of similar or equal to 60 pc. Another example is the detection of proto-clusters of dusty galaxies at high z, when they may not yet possess the hot intergalactic medium allowing their detection in X-rays or via the Sunyaev-Zeldovich effect.
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Galaxies: high-redshift,galaxies: evolution,submillimetre: galaxies,galaxies: clusters: general
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要点】:本文介绍了Planck任务在探测宇宙微波背景(CMB)的同时,意外地为河外源研究开辟了新路径,包括发现高红移极端引力放大的星系以及高红移尘埃星系的原星系团。

方法】:作者利用Planck任务的数据,通过分析CMB的观测结果,发现了河外源的新的研究案例。

实验】:实验基于Planck卫星的观测数据,数据集名称未在摘要中明确提及,但实验结果表明能够探测到红移值约为3的星系结构,以及高红移星系的原星系团。