Theoretical interpretation of "long" and "short" GRBs

TL;DR

This paper offers a theoretical framework within the fireshell model to interpret the distinct features of long and short gamma-ray bursts by analyzing their canonical light curves and emission components.

Contribution

It introduces a new interpretation of long and short GRBs based on the fireshell model's canonical light curve structure and emission mechanisms.

Findings

Proper-GRB emitted at fireshell transparency

Afterglow results from fireshell-CBM collision

Distinct emission components explain GRB diversity

Abstract

Within the "fireshell" model we define a "canonical GRB" light curve with two sharply different components: the Proper-GRB (P-GRB), emitted when the optically thick fireshell of electron-positron plasma originating the phenomenon reaches transparency, and the afterglow, emitted due to the collision between the remaining optically thin fireshell and the CircumBurst Medium (CBM). We here present the consequences of such a scenario on the theoretical interpretation of the nature of "long" and "short" GRBs.