activity
19972024
most citedOrigin of the Heaviest Elements: the Rapid Neutron-Capture Process

708 citations · 12.3k across the 157 of their papers we have counts for

collaborators

157 papers

astro-ph.SR2024

The R-Process Alliance: Analysis of Limited-r Stars

T. Xylakis-Dornbusch, T. T. Hansen, T. C. Beers +8

Context. In recent years, the R-Process Alliance (RPA) has conducted a successful search for stars enhanced in elements produced by the rapid neutron-capture (r-)process. In partic…

astro-ph.SR2024

Variations in Line Profiles of Atomic Transitions in RR Lyrae Stars

Christopher Sneden, George W. Preston

We have investigated the absorption shapes of atomic lines and Hα in RR Lyrae stars. We used the database of high resolution spectra gathered with the Las Campanas Observatory du P…

astro-ph.SR2024

Tungsten in barium stars

M. P. Roriz, M. Lugaro, S. Junqueira +3

Classical barium stars are red giants that received from their evolved binary companions material exposed to the \textit{slow} neutron-capture nucleosynthesis, i.e., the -proces…

astro-ph.SR2023★ 11 cited

M67 Blue Stragglers with High-resolution Infrared Spectroscopy

K. E. Brady, C. Sneden, C. A. Pilachowski +5

We report on the first detailed infrared chemical analysis of five binary members (S277, S997, S975, S1031, and S1195) in the open cluster M67 (NGC 2682). These stars are located o…

astro-ph.EP2023★ 1 cited

ELemental abundances of Planets and brown dwarfs Imaged around Stars (ELPIS): I. Potential Metal Enrichment of the Exoplanet AF Lep b and a Novel Retrieval Approach for Cloudy Self-luminous Atmospheres

Zhoujian Zhang, Paul Mollière, Keith Hawkins +10

AF Lep A+b is a remarkable planetary system hosting a gas-giant planet that has the lowest dynamical mass among directly imaged exoplanets. We present an in-depth analysis of the a…

astro-ph.GA2023★ 15 cited

The chemical evolution of the solar neighbourhood for planet-hosting stars

Marco Pignatari, Thomas C. L. Trueman, Kate A. Womack +13

Theoretical physical-chemical models for the formation of planetary systems depend on data quality for the Sun's composition, that of stars in the solar neighbourhood, and of the e…