activity
20042026
most citedThe Stellar Abundances for Galactic Archeology (SAGA) Database - Compilation of the Characteristics of Known Extremely Metal-Poor Stars

436 citations · 2.4k across the 53 of their papers we have counts for

collaborators

55 papers

astro-ph.SR2026

Abundance analysis of three new extremely metal-poor stars, including one CEMP-s star

P. François, T. Suda, S. Wanajo +5

We report a detailed abundance analysis of three extremely metal-poor (EMP) stars thanks to spectra obtained with the high-dispersion spectrograph (HDS) at the Subaru telescope. Th…

astro-ph.SR2026

Bright Metal-Poor Star Survey - I. Tomo-e Gozen narrow-band photometric survey and medium-resolution spectroscopic follow-up

Hiroko Okada, Takumi Iwasaki, Nozomu Tominaga +21

We present the Tomo-e Gozen Bright Metal-Poor Star Survey (TeMPS), a wide-area narrow-band photometric survey for bright metal-poor stars in the northern sky. The survey uses the T…

astro-ph.GA2025

Chemical abundances of seven stars in the GD-1 stream

Jing-Kun Zhao, Guang-Wei Li, Wako Aoki +13

We present the first detailed chemical abundances for seven GD-1 stream stars from Subaru/HDS spectroscopy. Atmospheric parameters were derived via color calibrations (…

astro-ph.SR2025

Detailed Chemical Abundance Analysis of Metal-Poor Turn-Off Stars: One with [Fe/H] < -4 and Three with [Fe/H] < -3

Takuma Suda, Patrick Francois, Shinya Wanajo +3

We present the analysis of four new extremely metal poor turn-off stars thanks to high-resolution spectra obtained with the Subaru/HDS spectrograph. We determined the abundances an…

astro-ph.GA2024★ 19 cited

Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties

Ruizhi Zhang, Tadafumi Matsuno, Haining Li +9

Very metal-poor (VMP) stars record the signatures of early accreted galaxies, making them essential tools for unraveling the early stages of Galaxy formation. Understanding the ori…

astro-ph.GA2024★ 5 cited

Detection of the actinide Th in an r-process-enhanced star with accretion origin

Xing Qianfan, Zhao Gang, Aoki Wako +4

The thorium and six second-peak r-process element (56<Z<72) abundances are determined for the alpha-poor star LAMOST J1124+4535 based on a high-resolution spectrum obtained with th…