# The 4.5 +/- 0.5 Soft Gamma Repeaters in Review

Source: [The 4.5 +/- 0.5 Soft Gamma Repeaters in Review](<https://www.sota2.com/research/paper/68fa24bb2c2a3760193a81f3>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T09:28:42.846Z

Authors: K. Hurley

Published: 1999-12-03T00:18:58.000Z

## Abstract

Four Soft Gamma Repeaters (SGRs) have now been identified with certainty, and a fifth has possibly been detected. I will review their X-ray and gamma-ray properties in both outburst and quiescence. The magnetar model accounts fairly well for the observations of SGR1806-20 and SGR1900+14, but data are still lacking for SGR1627-41 and SGR0525-66. The locations of the SGRs with respect to their supernova remnants suggest that they are high velocity objects.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/astro-ph/9912061>)

[PDF](<https://arxiv.org/pdf/astro-ph/9912061.pdf>)