Navegação Ciências Exatas e da Terra por Assunto "HST photometry"

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    • Timing the r-process enrichment of the ultra-faint dwarf galaxy Reticulum II 

      Simon, Josh D.; Santiago, Basilio Xavier; Wilkinson, Reese D. (2023) [Artigo de periódico]
      The ultra-faint dwarf galaxy Reticulum II (Ret II) exhibits a unique chemical evolution history, with - + 72 12 10% of its stars strongly enhanced in r-process elements. We present deep Hubble Space Telescope photometry ...