The effect of magnetic fields on γ-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999
Gamma-ray bursts (GRBs) are thought to arise when an extremely relativistic outflow of particles from a massive explosion (the nature of which is still unclear) interacts with material surrounding the site of the explosion. Observations of the evolving changes in emission at many wavelengths allow u...
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| Veröffentlicht in: | Nature (London) 1999-04, Vol.398 (6726), p.394-399 |
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| creator | Galama, T. J Briggs, M. S Wijers, R. A. M. J Vreeswijk, P. M Rol, E Band, D Paradijs, J. van Kouveliotou, C Preece, R. D Bremer, M Smith, I. A Tilanus, R. P. J Bruyn, A. G. de Strom, R. G Pooley, G Castro-Tirado, A. J Tanvir, N Robinson, C Hurley, K Heise, J Telting, J Rutten, R. G. M Packham, C Swaters, R Davies, J. K Fassia, A Green, S. F Foster, M. J Sagar, R Pandey, A. K Nilakshi Yadav, R. K. S Ofek, E. O Leibowitz, E Ibbetson, P Rhoads, J Falco, E Petry, C Impey, C Geballe, T. R Bhattacharya, D |
| description | Gamma-ray bursts (GRBs) are thought to arise when an extremely relativistic outflow of particles from a massive explosion (the nature of which is still unclear) interacts with material surrounding the site of the explosion. Observations of the evolving changes in emission at many wavelengths allow us to investigate the origin of the photons, and so potentially determine the nature of the explosion. Here we report the results of γ-ray, optical, infrared, submillimetre, millimetre and radio observations of the burst GRB990123 and its afterglow. Our interpretation of the data indicates that the initial and afterglow emissions are associated with three distinct regions in the fireball. The peak flux of the afterglow, one day after the burst, has a lower frequency than observed for other bursts; this explains the short-lived radio emission. We suggest that the differences between bursts reflect variations in the magnetic-field strength in the afterglow-emitting regions. |
| doi_str_mv | 10.1038/18828 |
| format | Article |
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J ; Briggs, M. S ; Wijers, R. A. M. J ; Vreeswijk, P. M ; Rol, E ; Band, D ; Paradijs, J. van ; Kouveliotou, C ; Preece, R. D ; Bremer, M ; Smith, I. A ; Tilanus, R. P. J ; Bruyn, A. G. de ; Strom, R. G ; Pooley, G ; Castro-Tirado, A. J ; Tanvir, N ; Robinson, C ; Hurley, K ; Heise, J ; Telting, J ; Rutten, R. G. M ; Packham, C ; Swaters, R ; Davies, J. K ; Fassia, A ; Green, S. F ; Foster, M. J ; Sagar, R ; Pandey, A. K ; Nilakshi ; Yadav, R. K. S ; Ofek, E. O ; Leibowitz, E ; Ibbetson, P ; Rhoads, J ; Falco, E ; Petry, C ; Impey, C ; Geballe, T. R ; Bhattacharya, D</creator><creatorcontrib>Galama, T. J ; Briggs, M. S ; Wijers, R. A. M. J ; Vreeswijk, P. M ; Rol, E ; Band, D ; Paradijs, J. van ; Kouveliotou, C ; Preece, R. D ; Bremer, M ; Smith, I. A ; Tilanus, R. P. J ; Bruyn, A. G. de ; Strom, R. G ; Pooley, G ; Castro-Tirado, A. J ; Tanvir, N ; Robinson, C ; Hurley, K ; Heise, J ; Telting, J ; Rutten, R. G. M ; Packham, C ; Swaters, R ; Davies, J. K ; Fassia, A ; Green, S. 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R</creatorcontrib><creatorcontrib>Bhattacharya, D</creatorcontrib><title>The effect of magnetic fields on γ-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999</title><title>Nature (London)</title><addtitle>Nature</addtitle><description>Gamma-ray bursts (GRBs) are thought to arise when an extremely relativistic outflow of particles from a massive explosion (the nature of which is still unclear) interacts with material surrounding the site of the explosion. Observations of the evolving changes in emission at many wavelengths allow us to investigate the origin of the photons, and so potentially determine the nature of the explosion. Here we report the results of γ-ray, optical, infrared, submillimetre, millimetre and radio observations of the burst GRB990123 and its afterglow. Our interpretation of the data indicates that the initial and afterglow emissions are associated with three distinct regions in the fireball. 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J</au><au>Briggs, M. S</au><au>Wijers, R. A. M. J</au><au>Vreeswijk, P. M</au><au>Rol, E</au><au>Band, D</au><au>Paradijs, J. van</au><au>Kouveliotou, C</au><au>Preece, R. D</au><au>Bremer, M</au><au>Smith, I. A</au><au>Tilanus, R. P. J</au><au>Bruyn, A. G. de</au><au>Strom, R. G</au><au>Pooley, G</au><au>Castro-Tirado, A. J</au><au>Tanvir, N</au><au>Robinson, C</au><au>Hurley, K</au><au>Heise, J</au><au>Telting, J</au><au>Rutten, R. G. M</au><au>Packham, C</au><au>Swaters, R</au><au>Davies, J. K</au><au>Fassia, A</au><au>Green, S. F</au><au>Foster, M. J</au><au>Sagar, R</au><au>Pandey, A. K</au><au>Nilakshi</au><au>Yadav, R. K. S</au><au>Ofek, E. O</au><au>Leibowitz, E</au><au>Ibbetson, P</au><au>Rhoads, J</au><au>Falco, E</au><au>Petry, C</au><au>Impey, C</au><au>Geballe, T. R</au><au>Bhattacharya, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of magnetic fields on γ-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999</atitle><jtitle>Nature (London)</jtitle><stitle>Nature</stitle><date>1999-04-01</date><risdate>1999</risdate><volume>398</volume><issue>6726</issue><spage>394</spage><epage>399</epage><pages>394-399</pages><issn>0028-0836</issn><eissn>1476-4687</eissn><coden>NATUAS</coden><abstract>Gamma-ray bursts (GRBs) are thought to arise when an extremely relativistic outflow of particles from a massive explosion (the nature of which is still unclear) interacts with material surrounding the site of the explosion. Observations of the evolving changes in emission at many wavelengths allow us to investigate the origin of the photons, and so potentially determine the nature of the explosion. Here we report the results of γ-ray, optical, infrared, submillimetre, millimetre and radio observations of the burst GRB990123 and its afterglow. Our interpretation of the data indicates that the initial and afterglow emissions are associated with three distinct regions in the fireball. The peak flux of the afterglow, one day after the burst, has a lower frequency than observed for other bursts; this explains the short-lived radio emission. We suggest that the differences between bursts reflect variations in the magnetic-field strength in the afterglow-emitting regions.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><doi>10.1038/18828</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0028-0836 |
| ispartof | Nature (London), 1999-04, Vol.398 (6726), p.394-399 |
| issn | 0028-0836 1476-4687 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_860377501 |
| source | Nature; Alma/SFX Local Collection |
| subjects | Afterglows Astronomy Bursts Earth, ocean, space Exact sciences and technology Explosions Fireballs Gamma ray bursts Gamma rays Gamma-ray sources gamma-ray bursts Humanities and Social Sciences Infrared Magnetic fields Magnetism multidisciplinary Radio emission Science Science (multidisciplinary) Stellar systems. Galactic and extragalactic objects and systems. The universe Unidentified sources and radiation outside the solar system |
| title | The effect of magnetic fields on γ-ray bursts inferred from multi-wavelength observations of the burst of 23 January 1999 |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-22T10%3A29%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20effect%20of%20magnetic%20fields%20on%20%CE%B3-ray%20bursts%20inferred%20from%20multi-wavelength%20observations%20of%20the%20burst%20of%2023%20January%201999&rft.jtitle=Nature%20(London)&rft.au=Galama,%20T.%20J&rft.date=1999-04-01&rft.volume=398&rft.issue=6726&rft.spage=394&rft.epage=399&rft.pages=394-399&rft.issn=0028-0836&rft.eissn=1476-4687&rft.coden=NATUAS&rft_id=info:doi/10.1038/18828&rft_dat=%3Cproquest_cross%3E1753548103%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=204485622&rft_id=info:pmid/&rfr_iscdi=true |