Correlated optical and gamma emissions from GRB 081126

Content Provider	Semantic Scholar
Author	Klotz, Alain Atteia, J. L. Coward, David M. Imerito, A. C.
Copyright Year	2009
Abstract	We present an analysis of time-resolved optical emissions o bserved from the gamma-ray burst GRB 081126 during the prompt phase. The analysis employed ti me resolved photometry using optical data obtained by the TAROT telescope, using BAT data from theSwiftspacecraft and time resolved spectroscopy at high energies from the GBM instrument onboa rd theFermispacecraft. The optical emission of GRB 081126 is found to be compatible with the second ga mm emission pulse shifted by a positive time-lag of 8.4 ±3.9sec. This is the first well resolved observation of a time l ag between optical and gamma emissions during a gamma–ray burst. Our observati ons could potentially provide new constraints on the fireball model for gamma ray burst early emiss ion . Furthermore, observations of time-lags between optical and gamma ray photons provides an exciting o pportunity to constrain quantum gravity theories. Subject headings: gamma-ray : bursts
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://hal.archives-ouvertes.fr/docs/00/38/02/59/PDF/grb081126.pdf
Alternate Webpage(s)	https://hal.archives-ouvertes.fr/hal-00380259/document
Alternate Webpage(s)	http://arxiv.org/pdf/0904.4786v1.pdf
Language	English
Access Restriction	Open
Subject Keyword	Batch file Emission - Male genitalia finding Energy, Physics GZMB wt Allele Gamma correction Glioblastoma Multiforme Interferon Type II Ions Medical Subject Headings Mesa Photons Sampling (signal processing) Silver TAROT-South robotic observatory
Content Type	Text
Resource Type	Article