“Twelve for dinner: How the Milky Way ‘ate’ smaller star clusters and galaxies”, UChicago News

January 12, 2022

Image credit: James Josephides and S5 Collaboration

"Stellar streams can come either from disrupting galaxies or star clusters," said Asst. Prof. Alex Ji at the University of Chicago, a co-author on the study. "Stars stripped from a cluster all have the same chemical composition because they are born at the same time, while stars stripped from a galaxy have differing compositions. These two types of streams provide different insights into the nature of dark matter."

Other UChicago co-authors on the paper were Nora Shipp, PhD’21, now at MIT; undergraduate student Kiyan Tavangar, BS’21; and Asst. Prof. Alex Drlica-Wagner.

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