Multiwavelength Observations of GRB 050820A: An Exceptionally Energetic Event Followed from Start to Finish

Cenko, Stephen B; Kasliwal, M M; Harrison, F A; Pal'shin, V; Frail, Dale A; Berger, Edo; Fox, Derek B; Moon, D-S; Nakar, Ehud; Penprase, B E; Price, Paul Antony; Schmidt, Brian; Chevalier, Roger A; Gehrels, N; Piran, T

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Multiwavelength Observations of GRB 050820A: An Exceptionally Energetic Event Followed from Start to Finish

Date

2006

Authors

Cenko, Stephen B

Kasliwal, M M

Harrison, F A

Pal'shin, V

Frail, Dale A

Berger, Edo

Fox, Derek B

Moon, D-S

Nakar, Ehud

Penprase, B E

Publisher

IOP Publishing

Abstract

We present observations of the unusually bright and long γ-ray burst GRB 050820A, one of the best sampled broadband data sets in the Swift era. The γ-ray light curve is marked by a soft precursor pulse some 200 s before the main event; the lack of any i