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GRB 021004 modelled by multiple energy injections

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dc.contributor.authorUgarte Postigo, A. de
dc.contributor.authorCastro Tirado, A. J.
dc.contributor.authorGorosabel, J.
dc.contributor.authorJóhannesson, G.
dc.contributor.authorBjörnsson, G.
dc.contributor.authorGudmundsson, E. H.
dc.contributor.authorBremer, M.
dc.contributor.authorPak, S.
dc.contributor.authorTanvir, N.
dc.contributor.authorCastro Cerón, J. M.
dc.contributor.authorGuzyi, S.
dc.contributor.authorJelínek, M.
dc.contributor.authorKlose, S.
dc.contributor.authorPérez Ramírez, D.
dc.contributor.authorAceituno, J.
dc.contributor.authorCampo Bagatín, A.
dc.contributor.authorCovino, S.
dc.contributor.authorCardiel López, Nicolás
dc.date.accessioned2023-06-20T10:50:58Z
dc.date.available2023-06-20T10:50:58Z
dc.date.issued2005-12
dc.description© ESO 2005. Artículo firmado por 46 autores. We acknowledge the generous allocation of observing time by different Time Allocation Committees at several observatories spread world-wide. Partly based on observations carried out with the IRAM Plateau de Bure Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany) and ING (Spain). This research has been partially supported by the Spain’s Ministerio de Ciencia y Tecnología under programmes ESP2002-04124-C03-01 and AYA2004-01515 (including FEDER funds). A. de Ugarte Postigo acknowledges support from a FPU grant from Spain’s Ministerio de Educación y Ciencia. G. Jóhannesson, G. Björnsson and E. H. Gudmundsson acknowledge support from a special grant from the Icelandic Research Council. V. V. Sokolov and T. A. Fatkhullin were supported by Russian Foundation for Basic Research, grant No. 01- 02-17106. We acknowledge our anonymous referee for constructive comments.
dc.description.abstractGRB 021004 is one of the best sampled gamma-ray bursts (GRB) to date, although the nature of its light curve is still being debated. Here we present 107 new optical, near-infrared (NIR) and millimetre observations, ranging from 2 h to more than a year after the burst. Fitting the multiband data to a model based on multiple energy injections suggests that at least 7 refreshed shocks took place during the evolution of the afterglow, implying a total energy release ( collimated within an angle of 1.degrees 8) of similar to 8 x 10(51) erg. Analysis of the late photometry reveals that the GRB 021004 host is a low extinction (A(V) similar to 0.1) starburst galaxy with M-B similar or equal to -22.0.
dc.description.departmentDepto. de Física de la Tierra y Astrofísica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipINSU/CNRS (France)
dc.description.sponsorshipSpain’s Ministerio de Ciencia y Tecnología
dc.description.sponsorshipFPU grant from Spain’s Ministerio de Educación y Ciencia
dc.description.sponsorshipIcelandic Research Council
dc.description.sponsorshipRussian Foundation for Basic Research
dc.description.sponsorshipFEDER funds
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/29347
dc.identifier.doi10.1051/0004-6361;20052898
dc.identifier.issn0004-6361
dc.identifier.officialurlhttp://dx.doi.org/10.1051/0004-6361:20052898
dc.identifier.relatedurlhttp://www.aanda.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/51333
dc.issue.number3
dc.journal.titleAstronomy & Astrophysics
dc.language.isoeng
dc.page.final849
dc.page.initial841
dc.publisherEDP Sciencies
dc.relation.projectIDESP2002-04124-C03-01
dc.relation.projectIDAYA2004-01515
dc.relation.projectID01- 02-17106
dc.rights.accessRightsopen access
dc.subject.cdu52
dc.subject.keywordGamma-ray burst
dc.subject.keywordLight curves
dc.subject.keywordOptical afterglow
dc.subject.keywordGRB
dc.subject.keywordVariability
dc.subject.keywordGRB-000926
dc.subject.keywordProgenitor
dc.subject.keywordEmission
dc.subject.keywordDynamics
dc.subject.keywordGalaxies
dc.subject.ucmAstrofísica
dc.subject.ucmAstronomía (Física)
dc.subject.ucmFísica atmosférica
dc.subject.unesco2501 Ciencias de la Atmósfera
dc.titleGRB 021004 modelled by multiple energy injections
dc.typejournal article
dc.volume.number443
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