TITLE:
Peak Energy Correlations for Gamma-Ray Bursts
AUTHORS:
Walid J. Azzam
KEYWORDS:
Gamma-Ray Bursts, Peak Energy Correlations, Energy Indicators
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.5 No.8,
August
4,
2017
ABSTRACT: Gamma-ray bursts (GRBs) are the most powerful explosions in the universe. Over the past two decades, several GRB energy and luminosity correlations were discovered. These correlations typically involve an observable parameter, like the observed peak energy, Ep,obs, and a non-observable quantity, like the equivalent isotropic energy, Eiso. This paper provides a brief review of GRB peak energy correlations. Specifically, it focuses on the Amati relation, which correlates Ep,obs and Eiso, and the Ghirlanda relation, which correlates Ep,obs and Ey, the total energy corrected for beaming. The paper also discusses the physical interpretation of these relations in the context of the internal shock model.