229 citations · 385 across the 2 of their papers we have counts for
5 papers
Neutron-capture elements in the very metal-poor star HD88609: another st ar with excesses of light neutron-capture elements
Satoshi Honda, Wako Aoki, Yuhri Ishimaru +1
We obtained a high resolution, high signal-to-noise UV-blue spectrum of the extremely metal-poor red giant HD88609 to determine the abundances of heavy elements. Nineteen neutron-c…
Neutron-capture elements in the very metal-poor star HD122563
S. Honda, W. Aoki, Y. Ishimaru +2
We obtained high resolution, high S/N spectroscopy for the very metal-poor star HD122563 with the Subaru Telescope High Dispersion Spectrograph. Previous studies have shown that th…
r-Process Calculations and Galactic Chemical Evolution
Shinya Wanajo, Yuhri Ishimaru
While the origin of r-process nuclei remains a long-standing mystery, recent spectroscopic studies of extremely metal-poor stars in the Galactic halo strongly suggest that it is as…
Enrichment of Very Metal-Poor Stars with Both r-Process and s-Process Elements from 8-10 M_\odot Stars
S. Wanajo, K. Nomoto, N. Iwamoto +2
Recent spectroscopic studies have revealed the presence of numerous carbon-enhanced, metal-poor stars with [Fe/H] < -2.0 that exhibit strong enhancements of s-process elements. The…
Detection of low Eu abundances in extremely metal-poor stars and the origin of r-process elements
Yuhri Ishimaru, Shinya Wanajo, Wako Aoki +1
We report abundance analyses of three extremely metal-poor stars with [Fe/H] , using the Subaru High Dispersion Spectrograph (HDS). All are found to have sub-solar val…