. (2008) Broadband observations of the naked-eye gamma-ray burst GRB 080319B. Nature, Vol.455 (No.7210). pp. 183-188. ISSN 1087-0156

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Abstract

Long- duration gamma-ray bursts ( GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of massive stars. Previous early optical observations of even the most exceptional GRBs ( 990123 and 030329) lacked both the temporal resolution to probe the optical flash in detail and the accuracy needed to trace the transition from the prompt emission within the outflow to external shocks caused by interaction with the progenitor environment. Here we report observations of the extraordinarily bright prompt optical and gamma-ray emission of GRB 080319B that provide diagnostics within seconds of its formation, followed by broadband observations of the afterglow decay that continued for weeks. We show that the prompt emission stems from a single physical region, implying an extremely relativistic outflow that propagates within the narrow inner core of a two- component jet.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Gamma ray bursts
Journal or Publication Title:	Nature
Publisher:	Nature Publishing Group
ISSN:	1087-0156
Date:	11 September 2008
Volume:	Vol.455
Number:	No.7210
Number of Pages:	6
Page Range:	pp. 183-188
Identification Number:	10.1038/nature07270
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	United States. National Aeronautics and Space Administration (NASA), National Science Foundation (U.S.) (NSF), Agenzia spaziale italiana, Italy. Ministero dell'istruzione, dell'università e della ricerca (MIUR), Italy. Ministero degli affari esteri (MAE), Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organization for Scientific Research] (NWO), Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Russian Space Agency, Science and Technology and Facilities Council (Great Britain) (STFC), Slovenian Research Agency (ARRS), Slovenia. Ministrstvo za znanost in tehnologijo [ Slovenia. Ministry of Science and Technology] , Poland. Ministerstwo Nauki i Szkolnictwa Wyższego [Poland. Ministry of Science and Higher Education]
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URI:	http://wrap.warwick.ac.uk/id/eprint/29437

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