GRB 110205a: Anatomy of a Long Gamma-Ray Burst

Gendre, B.; Atteia, J. L.; Boër, M.; Colas, François; Klotz, A.; Kugel, F.; Laas–Bourez, M.; Rinner, C.; Strajnic, J.; Stratta, G.; Vachier, F.

doi:10.1088/0004-637x/748/1/59

Cited by 37 publications

(35 citation statements)

References 42 publications

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“…The first optical peak tracking the gamma-ray light curve during the prompt emission can be understood as emission from internal shocks, while the remaining two peaks are produced by RS and FS component, respectively (Blake et al 2005;Fan et al 2005b). Another similar burst is GRB 110205A (Gendre et al 2012). Therefore, the two optical bumps (FS component and RS component) are attributed to the external shock emission, while the optical flares are related to the internal shocks of the central engine.…”

Section: Applied the Bayesian Informationmentioning

confidence: 96%

Statistical Distributions of Optical Flares from Gamma-Ray Bursts

Wang

et al. 2017

ApJ

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We statistically study gamma-ray burst (GRB) optical flares from the Swift/UVOT catalog. We compile 119 optical flares, including 77 flares with redshift measurements. Some tight correlations among the time scales of optical flares are found. For example, the rise time is correlated with the decay time, and the duration time is correlated with the peak time of optical flares. These two tight correlations indicate that longer rise times are associated with longer decay times of optical flares, and also suggest that broader optical flares peak at later times, which are consistent with the corresponding correlations of X-ray flares. We also study the frequency distributions of optical flare parameters, including the duration time, rise time, decay time, peak time and waiting time. Similar power-law distributions for optical and X-ray flares are found. Our statistic results imply that GRB optical flares and X-ray flares may share the similar physical origin and both of them are possibly related to central engine activities.

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Section: Applied the Bayesian Informationmentioning

confidence: 96%

Statistical Distributions of Optical Flares from Gamma-Ray Bursts

Wang

et al. 2017

ApJ

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“…In contrast, we found that the later prompt phase (G3) 332 significantly contributes to the observed optical flux. This is rare but not unprecedented [38][39][40] : it 333 has been shown that the majority of GRBs have an optical emission fainter than R = 15.5 mag 334 when the gamma-ray emission is active, however a small fraction (≈5-20%) exhibit a bright 335 (R≥14 mag) optical counterpart during the prompt phase 41 . 336…”

Section: Spectral Properties Of the Prompt Grb Phase 315mentioning

confidence: 99%

Significant and variable linear polarization during the prompt optical flash of GRB 160625B

Troja

Липунов

Mundell

et al. 2017

Nature

124

106

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“…In a few dozen cases, optical emission has been detected during the γ-ray prompt phase (e.g., Akerlof et al 1999;Fox et al 2003;Blake et al 2005;Vestrand et al 2005Vestrand et al , 2006Racusin et al 2008;Cucchiara et al 2011;Gendre et al 2012;Zheng et al 2012). Such a multi-wavelength coverage is instrumental for understanding the underlying prompt-emission mechanisms.…”

Section: Introductionmentioning

confidence: 99%

A UNIFIED MODEL FOR GRB PROMPT EMISSION FROM OPTICAL TO γ-RAYS; EXPLORING GRBs AS STANDARD CANDLES

Guiriec

Kouveliotou

Hartmann

et al. 2016

ApJL

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The origin of prompt emission from gamma ray bursts remains to be an open question. Correlated prompt optical and γ-ray emission observed in a handful of GRBs strongly suggests a common emission region, but failure to adequately fit the broadband GRB spectrum prompted the hypothesis of different emission mechanisms for the low-and high-energy radiations. We demonstrate that our multi-component model for GRB γ-ray prompt emission provides an excellent fit to GRB 110205A from optical to γ-ray energies. Our results show that the optical and highest γ-ray emissions have the same spatial and spectral origin, which is different from the bulk of the X-and softest γ-ray radiation. Finally, our accurate redshift estimate for GRB 110205A demonstrates promise for using GRBs as cosmological standard candles.

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GRB 110205a: Anatomy of a Long Gamma-Ray Burst

Cited by 37 publications

References 42 publications

Statistical Distributions of Optical Flares from Gamma-Ray Bursts

Statistical Distributions of Optical Flares from Gamma-Ray Bursts

Significant and variable linear polarization during the prompt optical flash of GRB 160625B

A UNIFIED MODEL FOR GRB PROMPT EMISSION FROM OPTICAL TO γ-RAYS; EXPLORING GRBs AS STANDARD CANDLES

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