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20222026
most citedUranium Abundances and Ages of -process Enhanced Stars with Novel U II Lines

14 citations · 30 across the 8 of their papers we have counts for

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5 papers · 1 filter

astro-ph.SR2026

The -Process Alliance: On J00101735, an Accreted, Chemically Unusual, Metal-poor Star with -process Enhancement

Zoe Hackshaw, Rana Ezzeddine, Shivani P. Shah +11

We present a detailed chemo-dynamical analysis of the chemically peculiar very metal-poor ([Fe/H]) Milky Way (MW) halo star, 2MASS J001017581735387 (hereafter J0…

astro-ph.SR2025★ 1 cited

Exploring the History of Stellar Mergers with Chemistry: Examining the Origins of Massive -Enriched Stars using Carbon Isotope Ratios

Zachary G. Maas, Keith Hawkins, Jeffrey M. Gerber +2

Recently discovered massive -enriched (MAE) stars have surface chemistry consistent with members of the older thick disk Milky Way population but high masses ( 1.5 - 3 M$_…

astro-ph.SR2025★ 1 cited

Optical Spectroscopy Reveals Hidden Neutron-capture Elemental Abundance Differences among APOGEE-identified Chemical Doppelgängers

Catherine Manea, Melissa Ness, Keith Hawkins +9

Grouping stars by chemical similarity has the potential to reveal the Milky Way's evolutionary history. The APOGEE stellar spectroscopic survey has the resolution and sensitivity f…

astro-ph.SR2023★ 14 cited

Uranium Abundances and Ages of -process Enhanced Stars with Novel U II Lines

Shivani P. Shah, Rana Ezzeddine, Alexander P. Ji +7

The ages of the oldest stars shed light on the birth, chemical enrichment, and chemical evolution of the Universe. Nucleocosmochronometry provides an avenue to determining the ages…

astro-ph.SR2022★ 5 cited

Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement

Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel +10

We present the discovery of 2MASS J05241392-0336543 (hereafter J0524-0336), a very metal-poor ([Fe/H]=-2.43 +- 0.16), highly r-process-enhanced ([Eu/Fe]= +1.34 +- 0.10) Milky Way h…