The Five Year Fermi/GBM Magnetar Burst Catalog

TL;DR

This paper presents a comprehensive five-year catalog of 440 magnetar bursts detected by Fermi/GBM, including detailed temporal and spectral analyses, and explores possible associations with newly discovered magnetars.

Contribution

It provides the first extensive catalog of magnetar bursts with high-resolution data and analyzes potential links to unknown magnetar sources.

Findings

Catalog includes durations, spectral parameters, fluences, and peak fluxes for 440 bursts.

Identifies potential association of some bursts with the new magnetar 3XMM J185246.6+0033.7.

Detailed temporal analysis performed for SGR J1550-5418 bursts.

Abstract

Since launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has detected many hundreds of bursts from magnetar sources. While the vast majority of these bursts have been attributed to several known magnetars, there is also a small sample of magnetar-like bursts of unknown origin. Here we present the Fermi/GBM magnetar catalog, giving the results of the temporal and spectral analyses of 440 magnetar bursts with high temporal and spectral resolution. This catalog covers the first five years of GBM magnetar observations, from July 2008 to June 2013. We provide durations, spectral parameters for various models, fluences and peak fluxes for all the bursts, as well as a detailed temporal analysis for SGR J1550-5418 bursts. Finally, we suggest that some of the bursts of unknown origin are associated with the newly discovered magnetar 3XMM J185246.6+0033.7.