Chi Hong (Sanctity) Lin
林祺紘
A Second year PHD student in Department of Astronomy, Graduate School of Science, The University of Tokyo.
- Dwarf Galaxy (UFDs/UCDs) Formation.
- Chemical Evolution of the early halos.
- Galaxy Mergers/Bulge/SMBHs growth.
Brief Introduction to My Research.
My research primarily revolves around galaxy simulations. We discovered that major mergers can be a possible channel to explain the rapid growth of 109 solar mass SMBHs at high redshift (See more in RESEARCH GALLERY).
Currently, I am developing the ASURA-BRIDGE code (Fujii, Saitoh, Hirai et al.). The major topic of my research now is the formation of dwarf galaxies
(e.g., Ultra-faint dwarf galaxies (UFDs) and Ultra-compact dwarfs (UCDs)). Observational data has shown halos with almost the same virial mass at z=0, but stellar masses differing by 3-5 orders of magnitude. We aim to solve this
problem using the ASURA-BRIDGE code with high spatial resolution and realistic physics models.
I have used the well-known open-source code GIZMO (Hopkins et al.) on the Cori at NERSC (National Energy Research Scientific Computing Center, USA) and
xl cluster of ASIAA (Institute of Astronomy and Astrophysics, Academia Sinica, Taiwan) to study supermassive black hole (SMBH) and bulge growth. Additionally, I have used YITP at Kyoto University to study the impact of
Population III stars on the evolution of halos and galaxy formation.
Latest Update: 2025/02/06.
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