Very high column density and small reddening toward GRB 020124 at z=3.20

Publication: Research - peer-reviewJournal article – Annual report year: 2003

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We present optical and near-infrared observations of the dim afterglow of GRB 020124, obtained between 2 and 68 hr after the gamma-ray burst. The burst occurred in a very faint (Rgreater than or similar to29.5) damped Lyalpha absorber (DLA) at a redshift of z=3.198+/-0.004. The derived column density of neutral hydrogen is log(N-Hi)=21.7+/-0.2, and the rest-frame reddening is constrained to be E(B-V)
Original languageEnglish
JournalAstrophysical Journal
Publication date2003
Volume597
Issue2
Pages699-705
ISSN0004-637X
StatePublished

Keywords

  • gamma rays : bursts, galaxies : ISM, cosmology : observations, dust, extinction, galaxies : abundances
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