The lag-luminosity relation in the gamma-ray burst source-frame

Abstract

We have investigated the empirical lag-luminosity relation in the Gamma-ray Burst (GRB) source-frame. We selected two energy bands (100-200 keV and 300-400 keV) in the GRB source-frame, which after redshift correction, lie in the observer-frame energy range of the Swift Burst Alert Telescope (BAT). The spectral lags between these energy channels are then presented as a function of the isotropic peak luminosity of the GRBs in the sample.

Accepted to be published in the Proceedings of "The Shocking Universe - Gamma-Ray Bursts and High Energy Shock Phenomena", Venice (Italy), September 14-18, 2009