168 citations · 1.5k across the 39 of their papers we have counts for
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Dynamical Relics of the Ancient Galactic Halo
Zhen Yuan, G. C. Myeong, Timothy C. Beers +11
We search for dynamical substructures in the LAMOST DR3 very metal-poor (VMP) star catalog. After cross-matching with Gaia DR2, there are 3300 VMP stars with available high-quality…
Discovery of Tidal Tails in Disrupting Open Clusters: Coma Berenices and a Neighbor Stellar Group
Shih-Yun Tang, Xiaoying Pang, Zhen Yuan +6
We report the discovery of tidal structures around the intermediate-aged ( 700--800~Myr), nearby (~pc) star cluster Coma Berenices. The spatial and kinematic grouping…
SDSS-IV MaNGA: Environmental dependence of the Mgb/<Fe>-sigma_* relation for nearby galaxies
Zheng Zheng, Cheng Li, Shude Mao +13
We use a sample of ~3000 galaxies from the MaNGA MPL-7 internal data release to study the alpha abundance distribution within low-redshift galaxies. We use the Lick index ratio Mgb…
Revealing the Complicated Story of the Cetus Stream with StarGO
Zhen Yuan, M. C. Smith, Xiang-Xiang Xue +5
We use a novel cluster identification tool StarGO to explore the metal poor ([Fe/H] -1.5) outer stellar halo (d 15 kpc) of the Milky Way using data from Gaia, LAMOST and SD…