The production of about half of the heavy elements found in nature is assigned to a specific
astrophysical nucleosynthesis process: the rapid neutron-capture process (r process) …

Several lines of evidence suggest that the Milky Way underwent a major merger at z∼ 2 with
the Gaia-Sausage-Enceladus (GSE) galaxy. Here we use H3 Survey data to argue that GSE …

The Gaia mission has provided an invaluable wealth of astrometric data for more than a
billion stars in our Galaxy. The synergy between Gaia astrometry, photometry, and …

We combine spectroscopic, photometric, and astrometric information from APOGEE data
release 17 and Gaia early data release 3 to perform a self-consistent characterization of …

We present a nearly complete rapid neutron-capture process (r-process) chemical inventory
of the metal-poor ([Fe/H]=− 1.46±0.10) r-process-enhanced ([Eu/Fe]=+ 1.32±0.08) halo star …

The heaviest chemical elements are naturally produced by the rapid neutron-capture
process (r-process) during neutron star mergers or supernovae. The r-process production of …

We construct a sample of 644 carbon-enhanced metal-poor (CEMP) stars with abundance
analyses based on moderate-to high-resolution spectroscopic studies. Dynamical …

We use the 17th data release of the second phase of the Apache Point Observatory Galactic
Evolution Experiment (APOGEE-2) to provide a homogenous census of N-rich red giant …

The r-process-enhanced (RPE) stars provide fossil records of the assembly history of the
Milky Way (MW) and the nucleosynthesis of the heaviest elements. Observations by the R …

Recent progress of nucleosynthesis work as well as the discovery of a kilonova associated
with the gravitational-wave source GW170817 indicates that neutron star mergers (NSM) …