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Observatoire Midi-Pyrénées |  |
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Observatoire Midi-Pyrénées | |
| HAL: hal-00022114, version 1 |
| arXiv: astro-ph/0604061 |
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| Continuous optical monitoring during the prompt emission of GRB 060111B |
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| Alain Klotz 1, 2Bruce Gendre 3 |
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| (2006-04-02) |
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| We present the time-resolved optical emission of GRB 060111B during its prompt phase, measured with the TAROT robotic observatory. This is the first time that the optical emission from a gamma-ray burst has been continuously monitored with a temporal resolution of a few seconds during the prompt gamma-ray phase. The temporal evolution of the prompt optical emission at the level of several seconds is used to provide a clue to the origin of this emission. The optical emission was found to decay steadily from our first measure, 28s after the trigger, in contrast to the gamma-ray emission, which exhibits strong variability at the same time. This behaviour strongly suggests that the optical emission is due to the reverse shock. |
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| 1: | Centre d'étude spatiale des rayonnements (CESR) |
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CNRS : UMR5187 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| 2: | Observatoire de Haute-Provence (OHP) |
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CNRS : USR2207 – INSU – Université de Provence - Aix-Marseille I |
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| 3: | IASF, Roma |
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INAF |
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| 4: | Laboratoire d'Astrophysique de l'Observatoire Midi-Pyrénées (LATT) |
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CNRS : UMR5572 – INSU – Observatoire Midi-Pyrénées – Université Paul Sabatier [UPS] - Toulouse III |
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| 5: | Observatoire de Geneve |
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University of Geneva |
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| Subject | : | Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics Sciences of the Universe/Astrophysics |
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| Gamma-ray burst |
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| hal-00022114, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00022114 | |
| oai:hal.archives-ouvertes.fr:hal-00022114 | |
| From: Jean-Luc Atteia | |
| Submitted on: Sunday, 2 April 2006 18:18:50 | |
| Updated on: Tuesday, 4 April 2006 17:39:06 | |
