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arXiv 0809.0050astro-ph
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高红移星系巡天

High redshift galaxy surveys

Masanori Iye

摘要:

简要概述了早期宇宙人口普查的现状。对高红移星系的观测调查提供了直接的机会来见证宇宙的黎明,并更好地了解婴儿星系如何以及何时演变成成熟星系。相对于研究宇宙微波辐射空间涨落的物理方法,这是一种更天文的方法。最近在这两个领域的发现极大地推进了我们对早期宇宙的理解。我将描述我们正在寻找的几个目标物体的基本性质,以及天文学家在早期宇宙中发现这些物体的具体方法。我的演讲从莱曼α发射体和莱曼破裂星系开始,然后介绍了一种巧妙的方法,利用星系团的引力透镜效应来探测星系团后面遥远的微弱星系。最后,我将谈到类星体和伽马射线暴调查的现状和前景。

英文摘要:

A brief overview on the current status of the census of the early universe population is given. Observational surveys of high redshift galaxies provide direct opportunities to witness the cosmic dawn and to have better understanding of how and when infant galaxies evolve into mature ones. It is a much more astronomical approach in contrast to the physical approach of to study the spatial fluctuation of cosmic microwave radiation. Recent findings in these two areas greatly advanced our understanding of the early Universe. I will describe the basic properties of several target objects we are looking for and the concrete methods astronomers are using to discover those objects in early Universe. My talk starts with Lyman alpha emitters and Lyman break galaxies, then introduces a clever approach to use gravitational lensing effect of clusters of galaxies to detect distant faint galaxies behind the clusters. Finally I will touch on the status and prospects of surveys for quasars and gamma-ray bursts.

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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