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Broadband observations of the naked-eye big gamma-ray burst GRB 080319B

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posted on 2018-06-06, 10:40 authored by J. L. Racusin, S. V. Karpov, M. Sokolowski, J. Granot, X. F. Wu, V. Pal'shin, S. Covino, A. J. V. D. Horst, S. R. Oates, P. Schady, R. J. Smith, J. Cummings, R. L. C. Starling, L. W. Piotrowski, B. Zhang, P. A. Evans, S. T. Holland, K. Malek, M. T. Page, L. Vetere, R. Margutti, C. Guidorzi, A. Kamble, P. A. Curran, A. Beardmore, C. Kouveliotou, L. Mankiewicz, A. Melandri, P. T. O'Brien, K. L. Page, T. Piran, N. R. Tanvir, G. Wrochna, R. L. Aptekar, C. Bartolini, S. Barthelmy, G. M. Beskin, S. Bondar, S. Campana, A. Cucchiara, M. Cwiok, P. D'Avanzo, V. D'Elia, M. D. Valle, W. Dominik, A. Falcone, F. Fiore, D. B. Fox, D. D. Frederiks, A. S. Fruchter, D. Fugazza, M. Garrett, N. Gehrels, S. Golenetskii, A. Gomboc, G. Greco, A. Guarnieri, S. Immler, G. Kasprowicz, A. J. Levan, E. P. Mazets, E. Molinari, A. Moretti, K. Nawrocki, P. P. Oleynik, J. P. Osborne, C. Pagani, Z. Paragi, M. Perri, A. Piccioni, E. Ramirez-Ruiz, P. W. A. Roming, I. A. Steele, R. G. Strom, V. Testa, G. Tosti, M. V. Ulanov, K. Wiersema, R. A. M. J. Wijers, A. F. Zarnecki, F. Zerbi, P. Meszaros, G. Chincarini, D. N. Burrows
Long-duration γ-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 γ-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.

History

Citation

Nature, 2008, 455, pp. 183-188

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy

Version

  • AM (Accepted Manuscript)

Published in

Nature

Publisher

Nature Publishing Group

issn

0028-0836

eissn

1476-4687

Acceptance date

2008-07-11

Copyright date

2008

Available date

2018-06-06

Publisher version

https://www.nature.com/articles/nature07270

Language

en

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