The R-Process Alliance: 2MASS J09544277+5246414, the most actinide-enhanced R-II star known

We report the discovery of a new actinide-boost star, 2MASS J09544277+5246414, originally identified as a very bright (V = 10.1), extremely metal-poor ([Fe/H] = -2.99) K giant in the LAMOST survey, and found to be highly r-process-enhanced (r-II; [Eu/Fe] = +1.28]), during the snapshot phase of the R...

Full description

Bibliographic Details
Main Author: Frebel, Anna
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Published: American Astronomical Society 2020
Online Access:https://hdl.handle.net/1721.1/124736