Oct. 20- Oct.24

SHAO Astrophysics Colloquia 

Cosmic Gas as a Probe of Structure Formation and Evolution

Speaker: Taotao Fang (Prof. Xiamen University) 

Time: Thursday, 3:00pm, October 23th 

Location: Lecture Hall, 3rd floor


Abstract: As the main repository of baryons in the universe, cosmic gas provides important clues to the formation and evolution of the large scale structure. I will discuss several projects related to the two "missing baryons" problems, with a focus on understanding the cosmic structure formation and evolution through its gaseous content. At large scale, the "missing baryons" problem refers to the discovery that the observed baryonic matter in the local universe accounts for less than 50% of the total baryons. At small scale, the second ”missing baryons” problem refers to the fact that the cold baryon fraction in Milky-Way size galaxies is well-below the mean cosmic baryon fraction. I will discuss our recent progress toward solving both puzzles. I will also discuss how answers to these questions help understand the circumgalactic medium, the interface between galaxy and the intergalactic medium, and its role in regulating galaxy formation and evolution.


Group meetings and additional talks

Stellar Cluster and Galaxy Seminar group seminar  

Location: 1618; Contact: Jianling Gan <>  

Title: Resonant Clumping and Substructure in Galaxy Disks  

Speaker: Molloy, Matthew (KIAA)  

Time: Wednesday, 10:30pm, Oct 22


Blackhole accretion and High-energy astrophysics Seminar  

Location: 1608; Contact: Qixiang Yang <>  

Title: Super Eddington Slim Accretion Disks with Winds  

Speaker: Amin  

Time: Friday, 9:30am, Oct 24 


Research Center for Galaxy and Cosmology is the division engaging on the astrophysical research in Shanghai Astronomical Observatory. The research area includes cosmology, large scale structure, galaxy formation and evolution, the active galactic nucleus and compact objects, the star cluster and the structure of the Milk Way etc.

CGC participates in many international sky survey projects, including the LAMOST sky survey, the Sloan Digital Sky Survey IV ,BigBoss,LSST etc. CGC maintains close partnerships with many astronomical   research institutes.

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