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Observation and implications of the Epeak - Eiso correlation in Gamma-Ray Bursts

J-L. Atteia·G. R. Ricker·D. Q. Lamb·T. Sakamoto·C. Graziani·T. Donaghy·C. Barraud·the HETE-2 Science Team
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Abstract

The availability of a few dozen GRB redshifts now allows studies of the intrinsic properties of these high energy transients. Amati et al. recently discovered a correlation between Epeak, the intrinsic peak energy of the $νf ν$ spectrum, and Eiso, the isotropic equivalent energy radiated by the source. Lamb et al. have shown that HETE-2 data confirm and extend this correlation. We discuss here one of the consequences of this correlation: the existence of a 'spectral standard candle', which can be used to construct a simple redshift indicator for GRBs.

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J-L. Atteia, G. R. Ricker, D. Q. Lamb, T. Sakamoto, C. Graziani, T. Donaghy, C. Barraud, the HETE-2 Science Team. 2003-12-15. Observation and implications of the Epeak - Eiso correlation in Gamma-Ray Bursts. https://doi.org/10.1063/1.1810796

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