On the Origin of the Long Gamma-Ray Burst Afterglow as Synchrotron Radiation from Binary-Driven Hypernovae

TL;DR

This paper proposes that the afterglow of long gamma-ray bursts across multiple wavelengths is caused by synchrotron radiation emitted by supernova ejecta from binary-driven hypernovae, providing an analytic explanation.

Contribution

It offers an analytic model linking gamma-ray burst afterglows to synchrotron radiation from supernova ejecta in binary-driven hypernovae, a novel explanation for observed afterglow behavior.

Findings

Afterglow emission follows a power-law decay across wavelengths.

Synchrotron radiation from supernova ejecta explains the afterglow luminosity.

Analytic treatment supports the binary-driven hypernova model.

Abstract

Long gamma-ray bursts show an afterglow emission in the X-rays, optical, and radio wavelengths with luminosities that fade with time with a nearly identical power-law behavior. In this talk, I present an analytic treatment that shows that this afterglow is produced by synchrotron radiation from the supernova ejecta associated with binary-driven hypernovae.