A Search for the Intermediate Subgroup of Gamma-Ray Bursts in the Swift Dataset

TL;DR

This study investigates the existence of an intermediate subgroup of gamma-ray bursts in the Swift dataset using statistical tests, providing evidence for its presence.

Contribution

It applies chi-squared and F-test methods to support the existence of a third gamma-ray burst subgroup in the Swift data.

Findings

Support for the intermediate subgroup based on statistical analysis

Application of chi^2 and F-test methods

Identification of a potential third gamma-ray burst class

Abstract

We have searched for the third, 'intermediate', subgroup of gamma-ray bursts among nearly 400 gamma-ray bursts observed by the Swift satellite. The standard chi^2 method and F-test were applied which give support for the existence of this subgroup.