3 papers
astro-ph.GA2025
Decoding the Galactic Twirl: The Downfall of Milky Way-mass Galaxies Rotation Curves in the FIRE Simulations
Xiaowei Ou, Lina Necib, Andrew Wetzel +3
Recent measurements of the Milky Way rotation curve found a sharp decline at around - kpc from the center of the Galaxy, suggesting that the Galactic dark matter halo is mu…
astro-ph.GA2025
Early r-process Enrichment and Hierarchical Assembly Across the Sagittarius Dwarf Galaxy
Xiaowei Ou, Alexander Yelland, Anirudh Chiti +3
Dwarf galaxies like Sagittarius (Sgr) provide a unique window into the early stages of galactic chemical evolution, particularly through their metal-poor stars. By studying the che…
astro-ph.SR2020
Vanadium Abundance Derivations in 255 Metal-poor Stars
Xiaowei Ou, Ian U. Roederer, Christopher Sneden +4
We present vanadium (V) abundances for 255 metal-poor stars, derived from high-resolution optical spectra from the Magellan Inamori Kyocera Echelle spectrograph on the Magellan Tel…