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The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329

Taylor, Frail, Berger and Kulkarni have made precise VLBI measurements of the size and position of the source of the radio afterglow of GRB 030329. They report a size evolution compatible with standard fireball models, proper motion limits inconsistent with the cannonball model, and a double source,...

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Detalles Bibliográficos
Autores principales: Dado, Shlomo, Dar, Arnon, De Rujula, Alvaro
Lenguaje:eng
Publicado: 2004
Materias:
Acceso en línea:http://cds.cern.ch/record/741938
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author Dado, Shlomo
Dar, Arnon
De Rujula, Alvaro
author_facet Dado, Shlomo
Dar, Arnon
De Rujula, Alvaro
author_sort Dado, Shlomo
collection CERN
description Taylor, Frail, Berger and Kulkarni have made precise VLBI measurements of the size and position of the source of the radio afterglow of GRB 030329. They report a size evolution compatible with standard fireball models, proper motion limits inconsistent with the cannonball model, and a double source, i.e. "an additional compact component" on day 51 after the GRB, totally unexpected in the standard models. We outline a consistent interpretation of the ensemble of the data in the realm of the cannonball model. The observed double source is a radio image of the two cannonballs required in this model to explain the gamma-ray and optical light curves of this GRB; their separation agrees with the expectation. Thus interpreted, the observation of the two sources --separated by a "hyperluminal" distance-- is a major discovery in astrophysics: it pins down the origin of GRBs.
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institution Organización Europea para la Investigación Nuclear
language eng
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spelling cern-7419382023-03-14T20:26:18Zhttp://cds.cern.ch/record/741938engDado, ShlomoDar, ArnonDe Rujula, AlvaroThe Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329Astrophysics and AstronomyTaylor, Frail, Berger and Kulkarni have made precise VLBI measurements of the size and position of the source of the radio afterglow of GRB 030329. They report a size evolution compatible with standard fireball models, proper motion limits inconsistent with the cannonball model, and a double source, i.e. "an additional compact component" on day 51 after the GRB, totally unexpected in the standard models. We outline a consistent interpretation of the ensemble of the data in the realm of the cannonball model. The observed double source is a radio image of the two cannonballs required in this model to explain the gamma-ray and optical light curves of this GRB; their separation agrees with the expectation. Thus interpreted, the observation of the two sources --separated by a "hyperluminal" distance-- is a major discovery in astrophysics: it pins down the origin of GRBs.Taylor, Frail, Berger and Kulkarni have made precise VLBI measurements of the size and position of the source of the radio afterglow of GRB 030329. They report a size evolution compatible with standard fireball models, proper motion limits inconsistent with the cannonball model, and a double source, i.e. an additional compact component on day 51 after the GRB, totally unexpected in the standard models. We outline a consistent interpretation of the ensemble of the data in the realm of the cannonball model. The observed double source is a radio image of the two cannonballs required in this model to explain the gamma-ray and optical light curves of this GRB: their separation agrees with the expectation. Thus interpreted, the observation of the two sources --separated by a hyperluminal distance-- is a major discovery in astrophysics: it pins down the origin of GRBs.astro-ph/0406325oai:cds.cern.ch:7419382004
spellingShingle Astrophysics and Astronomy
Dado, Shlomo
Dar, Arnon
De Rujula, Alvaro
The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329
title The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329
title_full The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329
title_fullStr The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329
title_full_unstemmed The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329
title_short The Discovery of a Hyperluminal Source in the Radio Afterglow of GRB 030329
title_sort discovery of a hyperluminal source in the radio afterglow of grb 030329
topic Astrophysics and Astronomy
url http://cds.cern.ch/record/741938
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