The Unusually Long Duration Gamma-ray Burst GRB 000911: Discovery of the afterglow and host galaxy
Price, Paul; Berger, Edo; Kulkarni, Shrinivas R; Djorgovski, S G; Fox, Derek B; Mahabal, A; Hurley, K C; Bloom, J S; Frail, Dale A; Galama, T J; Harrison, F A; Morrison, Graham Lindsay; Reichart, D E; Yost, S A; Sari, R; Axelrod, Tim; Cline, T; Golenetskii, S; Mazets, E; Schmidt, Brian; Trombka, J
Of all the well-localized gamma-ray bursts, GRB 000911 has the longest duration (T90 = 500 s) and ranks in the top 1% of BATSE bursts for fluence. Here we report the discovery of the afterglow of this unique burst. In order to simultaneously fit our radio and optical observations, we are required to invoke a model involving a hard electron distribution, p ∼ 1.5, and a jet-break time less than 1.5 days. A spectrum of the host galaxy taken 111 days after the burst reveals a single emission line,...[Show more]
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|Source:||Astrophysical Journal, The|
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