activity
20182026
most citedFour-hundred Very Metal-Poor Stars Studied with LAMOST and Subaru. II. Elemental abundances

120 citations · 293 across the 12 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

6 papers · 1 filter

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.GA2024★ 6 cited

A Modified Initial Mass Function of the First Stars with Explodability Theory under Different Enrichment Scenarios

Ruizheng Jiang, Gang Zhao, Haining Li +1

The most metal-poor stars record the earliest metal enrichment triggered by Population III stars. By comparing observed abundance patterns with theoretical yields of metal-free sta…

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…

astro-ph.GA2019★ 40 cited

Tracing Kinematic and Chemical Properties of Sagittarius Stream by K-Giants, M-Giants, and BHB stars

Chengqun Yang, Xiang-Xiang Xue, Jing Li +12

We characterize the kinematic and chemical properties of 3,000 Sagittarius (Sgr) stream stars, including K-giants, M-giants, and BHBs, select from SEGUE-2, LAMOST, and SDSS s…

astro-ph.GA2018★ 5 cited

Tracing the origin of moving groups I. The γ Leo moving group with high resolution spectra from the Subaru Telescope

Xilong Liang, Jingkun Zhao, Gang Zhao +7

We present chemical abundances of 15 stars in the γ Leo moving group based on high-resolution spectra with the Subaru High Dispersion Spectrograph. The sample was picked up by appl…