On the significance of the excess number of strong Mg II absorbers observed toward gamma-ray bursts

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Authors

Rapoport, Sharon
Onken, Christopher
Wyithe, J Stuart B
Schmidt, Brian
Thygesen, Anders O

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IOP Publishing

Abstract

The number of strong (equivalent width >1 Å) Mg II absorbers observed toward gamma-ray bursts (GRBs) has been found to be statistically larger than the number of strong absorbers toward quasi-stellar objects (QSOs). We formalize this "Mg II problem" and

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Astrophysical Journal, The

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Open Access

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Restricted until