The Astrophysical Journal (Jan 2024)

EIGER IV. The Cool 104 K Circumgalactic Environment of High-redshift Galaxies Reveals Remarkably Efficient Intergalactic Medium Enrichment

  • Rongmon Bordoloi,
  • Robert A. Simcoe,
  • Jorryt Matthee,
  • Daichi Kashino,
  • Ruari Mackenzie,
  • Simon J. Lilly,
  • Anna-Christina Eilers,
  • Bin Liu,
  • David DePalma,
  • Minghao Yue,
  • Rohan P. Naidu

DOI
https://doi.org/10.3847/1538-4357/ad1b63
Journal volume & issue
Vol. 963, no. 1
p. 28

Abstract

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We report new observations of the cool diffuse gas around 29, 2.3 1.3 R _200 ), suggest that five out of the seven Mg ii absorption systems are not gravitationally bound to their host galaxy. In contrast, most of the cool circumgalactic medium at z 4.

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