[Speaker1]
Pathak Prashant, SOKENDAI D3 (Supervisor; Prof. Hideki Takami)
[Title]
On-sky Closed-loop Atmospheric Dispersion Compensation: Demonstration of Sub-milliarcsecond Residual Dispersion Across H-band.

[Speaker2]
Tadafumi Matsuno, SOKENDAI D1 (Supervisor; Wako Aoki)
[Title]
Chemical Abundances of Extremely Metal-Poor Turn-Off Star
[Abstract]
I will start my talk with introduction to the
Galactic Archaeology and metal-poor stars. In the latter part, we
present our latest results of abundance analysis for extremely
metal-poor turn-off stars. The discussion includes i) lithium
abundance below [Fe/H]=-3.5, ii) chemical inhomogeneity in the early
Universe in comparison to supernova yield with special focus on
[Na/Fe] bimodality, and iii) binary mass transfer of materials
enriched with slow neutron capture process elements enhancement and
thermohaline mixing.