SHAO Astrophysics Colloquia 

Title: Accretion Disk Outbursts: MHD Simulations (Finally) Confront Reality 

Speaker: Omer Blaes (UC Santa Barbara) 

Time: Thursday, 3:00pm, September 4th 

Location: Lecture Hall, 3rd floor 

Abstract: Accretion disks around compact objects are responsible for some of the most powerful phenomena that we observe in the universe, from gamma-ray bursts to quasars. Stresses in the flow that transport angular momentum outward and allow gravitational binding energy to be released are central to the physics of these flows. For over twenty years, the dominant theoretical paradigm for these stresses is turbulence driven by an instability of weak magnetic fields embedded in the flow. Numerical simulations of this turbulence have revealed much about how these stresses might work, but until recently, they have not successfully explained (never mind predicted) the most significant quantitative observational constraints: the outburst time scales of dwarf novae and low mass X-ray binaries. I will describe recent progress on understanding the behaviour of these systems through simulations that incorporate the physics that is essential for exploring the physics of these phenomena 


Group meetings and additional talks 

Stellar Cluster and Galaxy Seminar group seminar

Title: Searching for and Characterization of Galactic Open Clusters toward the Galactic Anti-Center with Pan-STARRS1

Location: 1618; Contact: Jianling Gan   

Speaker: Lin, Chien-Cheng 

Time: Wednesday, 10:30pm, September



Sakurako Okamoto 

Office: 1602 (temporary) 

Position: Postdoctoral researcher 

Research interests: Dwarf galaxies, satellites of the Milky Way, large optical surveys  

Chien-Cheng Lin(林建争) 

Office: 1517 

Position: Postdoctoral researcher 

Research interests: Star clusters, Galactic structure, PanSTARRS survey 

Haritma Gaur 

Office: 1513 

Position: Postdoctoral researcher 

Research interests: Active galactic nuclei, multi-wavelength observations


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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