Elemental Abundances in GRB Afterglows and High‐Redshift DLAs

  title={Elemental Abundances in GRB Afterglows and High‐Redshift DLAs},
  author={Bryan Edward Penprase and Wallace L. W. Sargent and Irene Toro Martinez and Jason Xavier Prochaska and Daniel Jay Beeler},
We present the results of a survey of GRB afterglows and DLA absorption line systems, in which we compare the abundances of elements from the absorbers with surveys of stars, and previous work. Our results detect high metallicity systems within GRB afterglow absorption, consistent with galactic disks having high rates of star formation and enrichment of heavy elements. We also detect some of the lowest metallicity systems yet found in DLA absorption lines, with many values of [X/H]<−2.8… 
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