Source:http://linkedlifedata.com/resource/pubmed/id/15889085
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
7039
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| pubmed:dateCreated |
2005-5-12
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| pubmed:abstractText |
The explosion that results in a cosmic gamma-ray burst (GRB) is thought to produce emission from two physical processes: the central engine gives rise to the high-energy emission of the burst through internal shocking, and the subsequent interaction of the flow with the external environment produces long-wavelength afterglows. Although observations of afterglows continue to refine our understanding of GRB progenitors and relativistic shocks, gamma-ray observations alone have not yielded a clear picture of the origin of the prompt emission nor details of the central engine. Only one concurrent visible-light transient has been found and it was associated with emission from an external shock. Here we report the discovery of infrared emission contemporaneous with a GRB, beginning 7.2 minutes after the onset of GRB 041219a (ref. 8). We acquired 21 images during the active phase of the burst, yielding early multi-colour observations. Our analysis of the initial infrared pulse suggests an origin consistent with internal shocks.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
May
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| pubmed:issn |
1476-4687
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| pubmed:author |
pubmed-author:BarthelmySS,
pubmed-author:BlakeC HCH,
pubmed-author:BloomJ SJS,
pubmed-author:CampbellRR,
pubmed-author:ChaffeeFF,
pubmed-author:CummingsJ RJR,
pubmed-author:DuchêneGG,
pubmed-author:FalcoE EEE,
pubmed-author:FenimoreE EEE,
pubmed-author:GehrelsNN,
pubmed-author:GheiRR,
pubmed-author:HornsteinSS,
pubmed-author:HullingerDD,
pubmed-author:HurleyKK,
pubmed-author:KassisMM,
pubmed-author:KonopackiAA,
pubmed-author:KrimmH AHA,
pubmed-author:MarkwardtC BCB,
pubmed-author:McCabeCC,
pubmed-author:McLeanKK,
pubmed-author:PalmerDD,
pubmed-author:ParsonsAA,
pubmed-author:ProchaskaJ XJX,
pubmed-author:SkrutskieMM,
pubmed-author:StapelfeldtKK,
pubmed-author:StarrD LDL,
pubmed-author:SzentgyorgyiAA,
pubmed-author:TuellerJJ
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| pubmed:issnType |
Electronic
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| pubmed:day |
12
|
| pubmed:volume |
435
|
| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
181-4
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| pubmed:year |
2005
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| pubmed:articleTitle |
An infrared flash contemporaneous with the gamma-rays of GRB 041219a.
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| pubmed:affiliation |
Harvard College Observatory, Cambridge, Massachusetts 02138, USA.
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| pubmed:publicationType |
Journal Article
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