Observation of inverse Compton emission from a long γ-ray burst
Long-duration γ-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterized by an initial phase of bright and highly variable radiation in the kiloelectronvolt-to-megaelectronvolt band, which is probably produced within t...
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| Format: | Journal Article |
| Language: | English |
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NATURE PORTFOLIO
2019
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| Online Access: | http://dx.doi.org/10.1038/s41586-019-1754-6 http://hdl.handle.net/20.500.11937/90302 |
| _version_ | 1848765365071380480 |
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| author | Acciari, V.A. Ansoldi, S. Antonelli, L.A. Engels, A.A. Baack, D. Babić, A. Banerjee, B. Barres de Almeida, U. Barrio, J.A. González, J.B. Bednarek, W. Bellizzi, L. Bernardini, E. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bošnjak Busetto, G. Carosi, R. Ceribella, G. Chai, Y. Chilingaryan, A. Cikota, S. Colak, S.M. Colin, U. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D’Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Depaoli, D. Di Pierro, F. Di Venere, L. Espiñeira, E.D.S. Prester, D.D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V.F. Fattorini, A. Ferrara, G. Fidalgo, D. Foffano, L. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. López, R.J.G. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Godinović, N. Green, D. Guberman, D. Hadasch, D. Hahn, A. Herrera, J. Hoang, J. Hrupec, D. Hütten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jouvin, L. Kerszberg, D. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. López, M. López-Coto, R. López-Oramas, A. Loporchio, S. de Oliveira Fraga, B.M. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Anderson, Gemma Miller-Jones, James |
| author_facet | Acciari, V.A. Ansoldi, S. Antonelli, L.A. Engels, A.A. Baack, D. Babić, A. Banerjee, B. Barres de Almeida, U. Barrio, J.A. González, J.B. Bednarek, W. Bellizzi, L. Bernardini, E. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bošnjak Busetto, G. Carosi, R. Ceribella, G. Chai, Y. Chilingaryan, A. Cikota, S. Colak, S.M. Colin, U. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D’Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Depaoli, D. Di Pierro, F. Di Venere, L. Espiñeira, E.D.S. Prester, D.D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V.F. Fattorini, A. Ferrara, G. Fidalgo, D. Foffano, L. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. López, R.J.G. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Godinović, N. Green, D. Guberman, D. Hadasch, D. Hahn, A. Herrera, J. Hoang, J. Hrupec, D. Hütten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jouvin, L. Kerszberg, D. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. López, M. López-Coto, R. López-Oramas, A. Loporchio, S. de Oliveira Fraga, B.M. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Anderson, Gemma Miller-Jones, James |
| author_sort | Acciari, V.A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Long-duration γ-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterized by an initial phase of bright and highly variable radiation in the kiloelectronvolt-to-megaelectronvolt band, which is probably produced within the jet and lasts from milliseconds to minutes, known as the prompt emission1,2. Subsequently, the interaction of the jet with the surrounding medium generates shock waves that are responsible for the afterglow emission, which lasts from days to months and occurs over a broad energy range from the radio to the gigaelectronvolt bands1–6. The afterglow emission is generally well explained as synchrotron radiation emitted by electrons accelerated by the external shock7–9. Recently, intense long-lasting emission between 0.2 and 1 teraelectronvolts was observed from GRB 190114C10,11. Here we report multi-frequency observations of GRB 190114C, and study the evolution in time of the GRB emission across 17 orders of magnitude in energy, from 5 × 10−6 to 1012 electronvolts. We find that the broadband spectral energy distribution is double-peaked, with the teraelectronvolt emission constituting a distinct spectral component with power comparable to the synchrotron component. This component is associated with the afterglow and is satisfactorily explained by inverse Compton up-scattering of synchrotron photons by high-energy electrons. We find that the conditions required to account for the observed teraelectronvolt component are typical for GRBs, supporting the possibility that inverse Compton emission is commonly produced in GRBs. |
| first_indexed | 2025-11-14T11:34:05Z |
| format | Journal Article |
| id | curtin-20.500.11937-90302 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:34:05Z |
| publishDate | 2019 |
| publisher | NATURE PORTFOLIO |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-903022023-02-10T00:45:23Z Observation of inverse Compton emission from a long γ-ray burst Acciari, V.A. Ansoldi, S. Antonelli, L.A. Engels, A.A. Baack, D. Babić, A. Banerjee, B. Barres de Almeida, U. Barrio, J.A. González, J.B. Bednarek, W. Bellizzi, L. Bernardini, E. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bošnjak Busetto, G. Carosi, R. Ceribella, G. Chai, Y. Chilingaryan, A. Cikota, S. Colak, S.M. Colin, U. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D’Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Depaoli, D. Di Pierro, F. Di Venere, L. Espiñeira, E.D.S. Prester, D.D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V.F. Fattorini, A. Ferrara, G. Fidalgo, D. Foffano, L. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. López, R.J.G. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Godinović, N. Green, D. Guberman, D. Hadasch, D. Hahn, A. Herrera, J. Hoang, J. Hrupec, D. Hütten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jouvin, L. Kerszberg, D. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. López, M. López-Coto, R. López-Oramas, A. Loporchio, S. de Oliveira Fraga, B.M. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Anderson, Gemma Miller-Jones, James Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics EXTRAGALACTIC BACKGROUND LIGHT HIGH-ENERGY EMISSION MAGIC TELESCOPES SYNCHROTRON PERFORMANCE AFTERGLOW GRB CALIBRATION EVOLUTION CURVES Long-duration γ-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterized by an initial phase of bright and highly variable radiation in the kiloelectronvolt-to-megaelectronvolt band, which is probably produced within the jet and lasts from milliseconds to minutes, known as the prompt emission1,2. Subsequently, the interaction of the jet with the surrounding medium generates shock waves that are responsible for the afterglow emission, which lasts from days to months and occurs over a broad energy range from the radio to the gigaelectronvolt bands1–6. The afterglow emission is generally well explained as synchrotron radiation emitted by electrons accelerated by the external shock7–9. Recently, intense long-lasting emission between 0.2 and 1 teraelectronvolts was observed from GRB 190114C10,11. Here we report multi-frequency observations of GRB 190114C, and study the evolution in time of the GRB emission across 17 orders of magnitude in energy, from 5 × 10−6 to 1012 electronvolts. We find that the broadband spectral energy distribution is double-peaked, with the teraelectronvolt emission constituting a distinct spectral component with power comparable to the synchrotron component. This component is associated with the afterglow and is satisfactorily explained by inverse Compton up-scattering of synchrotron photons by high-energy electrons. We find that the conditions required to account for the observed teraelectronvolt component are typical for GRBs, supporting the possibility that inverse Compton emission is commonly produced in GRBs. 2019 Journal Article http://hdl.handle.net/20.500.11937/90302 10.1038/s41586-019-1754-6 English http://dx.doi.org/10.1038/s41586-019-1754-6 http://purl.org/au-research/grants/arc/DE180100346 http://purl.org/au-research/grants/arc/FT140101082 NATURE PORTFOLIO fulltext |
| spellingShingle | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics EXTRAGALACTIC BACKGROUND LIGHT HIGH-ENERGY EMISSION MAGIC TELESCOPES SYNCHROTRON PERFORMANCE AFTERGLOW GRB CALIBRATION EVOLUTION CURVES Acciari, V.A. Ansoldi, S. Antonelli, L.A. Engels, A.A. Baack, D. Babić, A. Banerjee, B. Barres de Almeida, U. Barrio, J.A. González, J.B. Bednarek, W. Bellizzi, L. Bernardini, E. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bošnjak Busetto, G. Carosi, R. Ceribella, G. Chai, Y. Chilingaryan, A. Cikota, S. Colak, S.M. Colin, U. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D’Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Depaoli, D. Di Pierro, F. Di Venere, L. Espiñeira, E.D.S. Prester, D.D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V.F. Fattorini, A. Ferrara, G. Fidalgo, D. Foffano, L. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. López, R.J.G. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Godinović, N. Green, D. Guberman, D. Hadasch, D. Hahn, A. Herrera, J. Hoang, J. Hrupec, D. Hütten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jouvin, L. Kerszberg, D. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. López, M. López-Coto, R. López-Oramas, A. Loporchio, S. de Oliveira Fraga, B.M. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Anderson, Gemma Miller-Jones, James Observation of inverse Compton emission from a long γ-ray burst |
| title | Observation of inverse Compton emission from a long γ-ray burst |
| title_full | Observation of inverse Compton emission from a long γ-ray burst |
| title_fullStr | Observation of inverse Compton emission from a long γ-ray burst |
| title_full_unstemmed | Observation of inverse Compton emission from a long γ-ray burst |
| title_short | Observation of inverse Compton emission from a long γ-ray burst |
| title_sort | observation of inverse compton emission from a long γ-ray burst |
| topic | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics EXTRAGALACTIC BACKGROUND LIGHT HIGH-ENERGY EMISSION MAGIC TELESCOPES SYNCHROTRON PERFORMANCE AFTERGLOW GRB CALIBRATION EVOLUTION CURVES |
| url | http://dx.doi.org/10.1038/s41586-019-1754-6 http://dx.doi.org/10.1038/s41586-019-1754-6 http://dx.doi.org/10.1038/s41586-019-1754-6 http://hdl.handle.net/20.500.11937/90302 |