세미나 연사 
김민진 박사님(한국천문연구원)
 세미나 장소 
과학관 B102
 연도 
2017
 월 / 일 
4/7
 시간 
11:00

Titl: Observational Evidence for the Coevolution between Supermassive Black Holes and Host Galaxies


Abstract:

The correlation between the mass of supermassive black holes (SMBHs) and the properties of their host galaxies suggests that SMBHs and host galaxies are closely linked in their formation and evolution. While the exact origin of their relationship is still under debate, theoretical models often invoke feedback from active galactic nuclei as a crucial mechanism for establishing the BH-host correlation. In the first part of my talk, I will present possible observational biases in the BH-host relation, and methods to overcome these biases. I will also report our efforts to find observational sign of the AGN feedback in high-z young luminous AGNs. While the origin of SMBHs is still unknown, intermediate-mass black hole (IMBH) is thought to be cosmologically important class to understand the link between stellar mass black holes and SMBHs. However, it is extremely rare in the present-day Universe. In the second part of this talk, I will report a Gemini/GMOS-N IFU study of an ultraluminous X-ray source in NGC 5252, which is a possible candidate of an off-nuclear IMBH. Lastly, I will briefly introduce recent activities of K-GMT science program, through which we provide the access to 6-8m class telescopes for Korean astronomical community.

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