The R-process alliance: discovery of the first metal-poor star with a combined r- and s-process element signature

by Gull, Maude, Frebel, Anna, Cain, Madelyn G., Ji, Alexander P., Ezzeddine, Rana
Published 2020

R-process-rich Stellar Streams in the Milky Way*

by Gull, Maude, Frebel, Anna, Hinojosa, Karina, Roederer, Ian U, Ji, Alexander P, Brauer, Kaley
Published 2022

The R-Process Alliance: chemical abundances for a trio of R-process-enhanced stars -- one strong, one moderate, and one mild

by Cain, Madelyn, Frebel, Anna, Gull, Maude, Ji, Alexander P., Placco, Vinicius M., Beers, Timothy C., Meléndez, Jorge, Ezzeddine, Rana, Casey, Andrew R., Hansen, Terese T., Roederer, Ian U., Sakari, Charli
Published 2020