# An exceptionally bright flare from SGR 1806–20 and the origins of short-duration γ-ray bursts

@article{Hurley2005AnEB,
title={An exceptionally bright flare from SGR 1806–20 and the origins of short-duration $\gamma$-ray bursts},
author={Kevin Hurley and Steven E. Boggs and Da. G. Munro Smith and Robert C. Duncan and Robert P. Lin and Andreas Zoglauer and S{\"a}m Krucker and G. J. Hurford and Hugh S. Hudson and Claudia Wigger and Wojtek Hajdas and C. Thompson and Igor G. Mitrofanov and Anton B. Sanin and William V. Boynton and Chuck Fellows and A. von Kienlin and Giselher G. Lichti and Arne Rau and Thomas L. Cline},
journal={Nature},
year={2005},
volume={434},
pages={1098-1103}
}
Soft-γ-ray repeaters (SGRs) are galactic X-ray stars that emit numerous short-duration (about 0.1 s) bursts of hard X-rays during sporadic active periods. They are thought to be magnetars: strongly magnetized neutron stars with emissions powered by the dissipation of magnetic energy. Here we report the detection of a long (380 s) giant flare from SGR 1806–20, which was much more luminous than any previous transient event observed in our Galaxy. (In the first 0.2 s, the flare released as much… Expand
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#### Paper Mentions

A giant γ-ray flare from the magnetar SGR 1806–20
Two classes of rotating neutron stars—soft γ-ray repeaters (SGRs) and anomalous X-ray pulsars—are magnetars, whose X-ray emission is powered by a very strong magnetic field (B ≈ 1015 G). SGRsExpand
Astrophysics: A certain flare
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A bright γ-ray flare interpreted as a giant magnetar flare in NGC 253
The γ-ray burst GRB 200415A is probably a giant flare emitted from a magnetar in the nearby starburst galaxy NGC 253, located about 3.5 million parsecs away. Expand
The Gamma-Ray Giant Flare from SGR 1806?20: Evidence of Crustal Cracking via Initial Timescales
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An expanding radio nebula produced by a giant flare from the magnetar SGR 1806–20
From day 6 to day 19 after the flare from SGR 1806 - 20, a resolved, linearly polarized, radio nebula was seen, expanding at approximately a quarter of the speed of light, and to create this nebula, at least 4 × 1043 ergs of energy must have been emitted by the giant flare. Expand
Soft gamma-ray repeater giant flares in the BATSE short gamma-ray burst catalogue: constraints from spectroscopy
• Physics
• 2005
The giant flare observed on 2004 December 27 from SGR 1806−20 has revived the idea that a fraction of short (<2 s) gamma-ray bursts (GRBs) are due to giant flares from soft gamma-ray repeaters (SGRs)Expand
The Giant Flare From SGR 1806-20 And Its Radio Afterglow
The multi-wavelength observations of the 2004 December 27 Giant Flare (GF) from SGR 1806-20 and its long-lived radio afterglow are briefly reviewed. The GF appears to have been produced by a dramaticExpand
GRB 200415A: A Short Gamma-Ray Burst from a Magnetar Giant Flare?
The giant flares of soft gamma-ray repeaters (SGRs) have long been proposed to contribute to at least a subsample of the observed short gamma-ray bursts (GRBs). In this paper, we perform aExpand
Quiet but still bright: XMM-Newton observations of the soft gamma-ray repeater SGR0526-66
SGR 0526–66 was the first soft gamma-ray repeater from which a giant flare was detected in 1979 March, suggesting the existence of magnetars, i.e. neutron stars powered by the decay of theirExpand
An X-ray burst from a magnetar enlightening the mechanism of fast radio bursts
Fast radio bursts (FRBs) are short (millisecond) radio pulses originating from enigmatic sources at extragalactic distances so far lacking a detection in other energy bands. Magnetized neutron starsExpand

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Two classes of rotating neutron stars—soft γ-ray repeaters (SGRs) and anomalous X-ray pulsars—are magnetars, whose X-ray emission is powered by a very strong magnetic field (B ≈ 1015 G). SGRsExpand
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It is now commonly believed that soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are magnetars—neutron stars powered by their magnetic fields. However, what differentiates theseExpand
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