理论物理与天体物理研究所系列讲座之261

报告时间

Title: Properties of Spectroscopically-Confirmed Galaxies at z >= 6

Speaker: 江林华 教授(国家青年千人计划入选者)
Institute: 北京大学科维理研究所(KIAA)
Time: 2017.06.01(Thursday) 14:30
Place: Physics Building 573, Haiyun Campus, Xiamen University
Abstract:
Star-forming galaxies at redshift z >= 6 are natural tools to study the early galaxy formation and explore the history of cosmic reionization. In this talk, I will present our recent work on our understanding of these high-redshift galaxies. The talk will consist of two parts.
In the first part, I will present the physical properties of a sample of spectroscopically confirmed galaxies at z>=6, including nearly 70 Lyman-alpha emitters (LAEs) and Lyman-break galaxies (LBGs). They have deep multi-band data and secure redshifts that allow us to reliably measure their physical properties.
In the second part of the talk, I will introduce our on-going program that uses Magellan M2FS to spectroscopically identify a large number galaxy candidates at 5.6 < z < 7. M2FS is one of the most efficient instruments to identify relatively bright high-redshift galaxies. When the program completes, we will build the largest (in terms of areal coverage) sample of luminous, spectroscopically-confirmed galaxies in this redshift range. This galaxy sample will be used to study physical properties of high-redshift galaxies and their implications to cosmic reionization.