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Colloquium by Zhiyuan Li (NJU)

An X-ray View of the Galactic Center: An Observer's Collection of Unresolved Problems


I will present an overview of the X-ray-related phenomena in the Galactic Center -- the closest accessible nucleus of a massive galaxy -- focusing on the innermost parsecs observed by Chandra and XMM-Newton. Of particular interest are the nonthermal (flaring) and thermal (extended) emission from Sgr A*,  the mixed-morphology supernova remnant Sgr A East, dozens of nonthermal filaments, and a large, heterogeneous collection of stellar sources embedded within a putative outflow of hot gas. I will highlight open questions in each of these components and report our recent and on-going effort in addressing some of these issues.

Time: Jun. 17, 2015, 2:30 pm

Venue: A601, NAOC