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Galaxy-Halo Connection for Next Generation Galaxy Surveys

  • 2018年秋季

题目:Galaxy-Halo Connection for Next Generation Galaxy Surveys

报告人:祖颖 特别研究员(青年千人), 上海交通大学

时间地点:周四, 2018.11.15下午2:30, 物理楼552

Abstract

We will be inundated with precise measurements of tens of millions of galaxy spectra, half million HI emission detections, and billions of galaxy images from future surveys like DESI, FAST, and LSST, respectively. Combined with high-resolution cosmological simulations, the tremendous statistics will enable robust inference of the probabilistic connection between galaxies and their underlying dark matter halos. I will briefly review the recent development in the studies of galaxy-halo connection, and introduce a novel probabilistic framework for maximizing the scientific return from survey data. I will further argue that this framework provides an exciting avenue for understanding the physics behind the fueling and quenching of star-formation activities in galaxies, independent of and orthogonal to the conventional semi-analytic models or hydro-dynamic simulations. Looking to the future, I will discuss the prospect of revealing the co-evolution of blackholes, stars, gas, and dark matter halos from the combination of DESI, LSST, and FAST.

 

简介:祖颖,南京大学天文系本科,2013年在美国俄亥俄州立大学取得天文学博士,之后成为卡内基梅隆大学宇宙学中心的博士后研究员,研究内容包括利用星系巡天实验来观测暗物质的分布和揭示暗能量的本质。2016年成为俄亥俄州立大学宇宙学和粒子物理中心的一名长期学者,同时是美国WFIRST空间望远镜的科学规划团队的核心顾问成员之一。他于20179月作为国家“青年千人”特别研究员加入上海交通大学天文系。现为上海交通大学在“国际暗能量光谱巡天计划”(DESI)中的科学负责人,并从事宇宙膨胀、暗物质、和星系形成等领域的前沿研究。



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