Exploring broadband GRB behavior during ?-ray emission

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dc.authoridSiverd, Robert/0000-0001-5016-3359
dc.authoridFlewelling, Heather/0000-0002-1050-4056
dc.authoridAshley, Michael/0000-0003-1412-2028
dc.authoridMirabal, Nestor/0000-0002-7021-5838
dc.authoridGogus, Ersin/0000-0002-5274-6790
dc.authoridRowell, Gavin/0000-0002-9516-1581
dc.authoridHorns, Dieter/0000-0003-1945-0119
dc.contributor.authorYost, S. A.
dc.contributor.authorSwan, H. F.
dc.contributor.authorRykoff, E. S.
dc.contributor.authorAharonian, F.
dc.contributor.authorAkerlof, C. W.
dc.contributor.authorAlday, A.
dc.contributor.authorAshley, M. C. B.
dc.date.accessioned2025-01-27T20:26:59Z
dc.date.available2025-01-27T20:26:59Z
dc.date.issued2007
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe robotic ROTSE-III telescope network detected prompt optical emission contemporaneous with the gamma-ray emission of Swift events GRB 051109A and GRB 051111. Both data sets have continuous coverage at high signal-to-noise levels from the prompt phase onward, and thus the early observations are readily compared to the Swift XRT and BAT high-energy detections. In both cases, the optical afterglow is established, declining steadily during the prompt emission. For GRB 051111, there is evidence of an excess optical component during the prompt emission. The component is consistent with the flux spectrally extrapolated from the gamma-rays, using the gamma-ray spectral index. A compilation of spectral information from previous prompt detections shows that such a component is unusual. The existence of two prompt optical components-one connected to the high-energy emission, the other to separate afterglow flux, as indicated in GRB 051111-is not compatible with a simple external-external'' shock model for the GRB and its afterglow.
dc.identifier.doi10.1086/510896
dc.identifier.endpage941
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.issue2
dc.identifier.scopus2-s2.0-33947628594
dc.identifier.scopusqualityQ1
dc.identifier.startpage925
dc.identifier.urihttps://doi.org/10.1086/510896
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22535
dc.identifier.volume657
dc.identifier.wosWOS:000244928500021
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofAstrophysical Journal
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectgamma rays : bursts
dc.titleExploring broadband GRB behavior during ?-ray emission
dc.typeArticle

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