Dr. K.S. Cheng (The University of Hong Kong)

"Possible high energy phenomena related to the stellar capture by the galactic supermassive black holes"

Stars captured by the supermassive black holes in the galactic centers are common phenomena. Capture events occurred in distant galaxies have been observed by various of X-ray satellites. The capture rate is roughly once every tens to hundreds thousand years for normal galaxies. These capture events should also occur in the past of Milky Way. In this talk we will review some high energy phenomena in the galactic center, which may be the consequences of the past stellar capture events.