천문우주과학과

일시: 2023년 6월 7일 수요일 오후 4시 자4514호(세미나실)

연사: 김지훈 교수님(서울대학교)

제목: Solving the Mysteries of Supermassive Black Holes in the Era of High-resolution Numerical Simulations    

초록: 

  Supermassive black holes (SMBHs) lurking at the centers of most galaxies are intriguing objects that are yet to be fully understood.  When experimenting with stars, galaxies, or black holes is humanly impossible, numerical simulations are often the only means to test our theory of Universe's structure formation.  Fortunately, the community of numerical structure formation has benefited greatly from the ever-improving computing technology over the past decades.  In this talk, I will discuss the new possibilities in the upcoming era of high-resolution numerical simulations, and highlight efforts to overcome the accompanying challenges.  As one example, I will describe a state-of-the-art simulation of a SMBH-host galaxy (quasar) in the early Universe, and demonstrate that previously undiscussed types of interplay between galactic components may hold important clues about the growth of SMBHs.  

관련 논문:

- Lee et al. (2023, ApJ): https://arxiv.org/pdf/2211.02376.pdf 

- Kim et al. (2019, ApJ): https://arxiv.org/pdf/1910.12888.pdf