Type: Article
Publication Date: 2010-11-02
Citations: 172
DOI: https://doi.org/10.1051/0004-6361/201015458
Context. Thirteen years after the discovery of the first afterglows, the nature of dark gamma-ray bursts (GRB) still eludes explanation: while each long-duration GRB typically has an X-ray afterglow, optical/NIR emission is only seen for 40–60% of them.