联系我们 | 网站地图 | English | 中国科学院  
 
新闻动态
友情链接
 您现在的位置:首页>新闻动态>学术活动
Galaxy formation in the context of concordance cosmology: confront theory with observations
2018-06-04 | 编辑: | 【】【打印】【关闭

TitleGalaxy formation in the context of concordance cosmology: confront theory with observations  

Speaker: Qi Guo (National Astronomical Observatories, CAS.) 

Time: 3:30 pm, June 07 (Thursday) 

Location: Lecture Hall, 3rd floor 

Abstract: 

It has made great progress in the field of galaxy formation and cosmology in the past 30 years. Here I will highlight recent progresses  and challenges in galaxy formation models, by comparing model predictions with observations.  In particular, I will also present our recent work to use galaxy formation models to explain the formation of a special population of dwarf galaxies, the ultra-diffuse dwarf galaxies (UDG). The UDGs have luminosity of typical dwarf galaxy but with sizes as large as typical L* galaxies.  They are preferentially discovered in high dense region, yet lack of tidal features.  A great attention has been drawn on the origin of this population. I will show that the UDGs are genuine dwarf galaxies rather than failed L* galaxies. 

评 论
版权所有 中国科学院上海天文台 Shanghai Astronomical Observatory 沪ICP备05005481号-1
地址:上海市南丹路80号邮编:200030 邮件:shao@shao.ac.cn