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Article: The unusual X-ray light curve of GRB 080307: The onset of the afterglow?

TitleThe unusual X-ray light curve of GRB 080307: The onset of the afterglow?
Authors
Page, K. L.Willingale, R.O'Brien, P. T.Tanvir, N. R.Osborne, J. P.Zhang, B.Holland, S. T.Levan, A. J.Melandri, A.Starling, R. L.C.Bersier, D.Burrows, D. N.Geach, J. E.Maxted, P.
KeywordsGamma-rays: bursts
Radiation mechanisms: non-thermal
X-rays: individual: GRB 080307
Issue Date2009
Citation
Monthly Notices of the Royal Astronomical Society, 2009, v. 395, n. 1, p. 328-334 How to Cite?
DOI: http://dx.doi.org/10.1111/j.1365-2966.2009.14509.x
AbstractSwift-detected GRB 080307 showed an unusual smooth rise in its X-ray light curve around 100 s after the burst, at the start of which the emission briefly softened. This 'hump' has a longer duration than is normal for a flare at early times and does not demonstrate a typical flare profile. Using a two-component power-law-to-exponential model, the rising emission can be modelled as the onset of the afterglow, something which is very rarely seen in Swift-X-ray light curves. We cannot, however, rule out that the hump is a particularly slow early-time flare, or that it is caused by upscattered reverse shock electrons. © 2009 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/361123
ISSN
0035-8711
2023 Impact Factor: 4.7
2023 SCImago Journal Rankings: 1.621

 

DC FieldValueLanguage
dc.contributor.authorPage, K. L.-
dc.contributor.authorWillingale, R.-
dc.contributor.authorO'Brien, P. T.-
dc.contributor.authorTanvir, N. R.-
dc.contributor.authorOsborne, J. P.-
dc.contributor.authorZhang, B.-
dc.contributor.authorHolland, S. T.-
dc.contributor.authorLevan, A. J.-
dc.contributor.authorMelandri, A.-
dc.contributor.authorStarling, R. L.C.-
dc.contributor.authorBersier, D.-
dc.contributor.authorBurrows, D. N.-
dc.contributor.authorGeach, J. E.-
dc.contributor.authorMaxted, P.-
dc.date.accessioned2025-09-16T04:14:50Z-
dc.date.available2025-09-16T04:14:50Z-
dc.date.issued2009-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2009, v. 395, n. 1, p. 328-334-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/10722/361123-
dc.description.abstractSwift-detected GRB 080307 showed an unusual smooth rise in its X-ray light curve around 100 s after the burst, at the start of which the emission briefly softened. This 'hump' has a longer duration than is normal for a flare at early times and does not demonstrate a typical flare profile. Using a two-component power-law-to-exponential model, the rising emission can be modelled as the onset of the afterglow, something which is very rarely seen in Swift-X-ray light curves. We cannot, however, rule out that the hump is a particularly slow early-time flare, or that it is caused by upscattered reverse shock electrons. © 2009 RAS.-
dc.languageeng-
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.subjectGamma-rays: bursts-
dc.subjectRadiation mechanisms: non-thermal-
dc.subjectX-rays: individual: GRB 080307-
dc.titleThe unusual X-ray light curve of GRB 080307: The onset of the afterglow?-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2966.2009.14509.x-
dc.identifier.scopuseid_2-s2.0-64549117402-
dc.identifier.volume395-
dc.identifier.issue1-
dc.identifier.spage328-
dc.identifier.epage334-
dc.identifier.eissn1365-2966-

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