dc.contributor.author | Racusin, J.L. | |
dc.contributor.author | Karpov, S.V. | |
dc.contributor.author | Sokolowski, M. | |
dc.contributor.author | Granot, J. | |
dc.date.accessioned | 2009-02-26T15:27:33Z | |
dc.date.available | 2009-02-26T15:27:33Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Racusin , J L , Karpov , S V , Sokolowski , M & Granot , J 2008 , ' Broadband observations of the naked-eye gamma-ray burst GRB 080319B ' , Nature , vol. 188 , pp. 183-188 . https://doi.org/10.1038/nature07270 | |
dc.identifier.issn | 0028-0836 | |
dc.identifier.other | PURE: 168351 | |
dc.identifier.other | PURE UUID: 7f9f4914-dd60-4318-a3a1-6829e058c60f | |
dc.identifier.other | dspace: 2299/2975 | |
dc.identifier.other | Scopus: 51649126159 | |
dc.identifier.uri | http://hdl.handle.net/2299/2975 | |
dc.description | Original article can be found at: http://www.nature.com/ Copyright Nature Publishing Group DOI: 10.1038/nature07270 | |
dc.description.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 a massive star. Over the last forty years, our understanding of the GRB phenomenon has progressed dramatically; nevertheless, fortuitous circumstances occasionally arise that provide access to a regime not yet probed. GRB 080319B presented such an opportunity, with extraordinarily bright prompt optical emission that peaked at a visual magnitude of 5.3, making it briefly visible with the naked eye. It was captured in exquisite detail by wide-field telescopes, imaging the burst location from before the time of the explosion. The combination of these unique optical data with simultaneous γ-ray observations provides powerful diagnostics of the detailed physics of this explosion within seconds of its formation. Here we show that the prompt optical and γ-ray emissions from this event likely arise from different spectral components within the same physical region located at a large distance from the source, implying an extremely relativistic outflow. The chromatic behaviour of the broadband afterglow is consistent with viewing the GRB down the very narrow inner core of a two-component jet that is expanding into a wind-like environment consistent with the massive star origin of long GRBs. These circumstances can explain the extreme properties of this GRB. | en |
dc.language.iso | eng | |
dc.relation.ispartof | Nature | |
dc.title | Broadband observations of the naked-eye gamma-ray burst GRB 080319B | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | https://doi.org/10.1038/nature07270 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |