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          | Observational evidence and corresponding applications on the invalidation of a supermassive black hole harbored in the Galactic Center |  
        
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          |   title:Observational evidence and corresponding applications on the invalidation of a supermassive black hole harbored in the Galactic Center speaker: Qiuhe Peng (Nanjing University) time: 10:00 am, Dec. 26, 2014 Location: Lecture Hall, 3rd floor |  |