# Lag-luminosity relation in gamma-ray burst X-ray flares - Astrophysics > High Energy Astrophysical Phenomena

Lag-luminosity relation in gamma-ray burst X-ray flares - Astrophysics > High Energy Astrophysical Phenomena - Download this document for free, or read online. Document in PDF available to download.

Abstract: In strict analogy to prompt pulses, X-ray flares observed by Swift-XRT inlong Gamma-Ray Bursts define a lag-luminosity relation: L p,iso \proptot lag^{-0.95+-0.23}. The lag-luminosity is proven to be a fundamental lawextending 5 decades in time and 5 in energy. This is direct evidence that GRBX-ray flares and prompt gamma-ray pulses are produced by the same mechanism.

Author: R. Margutti

Source: https://arxiv.org/