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

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 $\nu f\nu$ 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.

arXiv commentProceedings of the GRB 2003 Conference in SantaFe, 5 pages, 4 figures

Cited by in corpus (6)

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• The Difference Between the Amati and Ghirlanda Relations
• Very High Energy Observations of Gamma-Ray Burst Locations with the Whipple Telescope
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• Delayed Afterglow Onset Interpreted as Baryon-Poor Viewing Angle
• The E_{peak}^{rest} -E_{rad} correlation in GRBs in the BATSE catalog