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The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-poor Stars in the Distant Milky Way Halo

In this work, we present high-resolution spectroscopic observations for six metal-poor stars with [Fe/H] < –3 (including one with [Fe/H] < –4), selected using narrowband Ca ii HK photometry from the DECam MAGIC Survey. The spectroscopic data confirm the accuracy of the photometric metallicities and...

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Asıl Yazarlar: Vinicius M. Placco, Guilherme Limberg, Anirudh Chiti, Deepthi S. Prabhu, Alexander P. Ji, Fabrícia O. Barbosa, William Cerny, Andrew B. Pace, Guy S. Stringfellow, David J. Sand, Clara E. Martínez-Vázquez, Alexander H. Riley, Silvia Rossi, Noelia E. D. Noël, A. Katherina Vivas, Gustavo E. Medina, Alex Drlica-Wagner, Joanna D. Sakowska, Burçin Mutlu-Pakdil, Pol Massana, Julio A. Carballo-Bello, Yumi Choi, Denija Crnojević, Chin Yi Tan, (MAGIC & DELVE Collaborations)
Materyal Türü: Artigo
Dil:Inglês
Baskı/Yayın Bilgisi: IOP Publishing 2025-01-01
Seri Bilgileri:The Astrophysical Journal
Konular:
High resolution spectroscopy
Stellar atmospheres
Chemical abundances
Metallicity
CEMP stars
Population II stars
Online Erişim:https://doi.org/10.3847/1538-4357/adf846
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