# 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 D. M. 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 Christopher Thompson and Igor G. Mitrofanov and A. 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}
}
• Published 16 February 2005
• Physics
• Nature
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…
447 Citations

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### An expanding radio nebula produced by a giant flare from the magnetar SGR 1806–20

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Nature
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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.

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### The Giant Flare From SGR 1806-20 And Its Radio Afterglow

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### GRB 200415A: A Short Gamma-Ray Burst from a Magnetar Giant Flare?

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• Physics
Nature
• 2005
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). SGRs

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Magnetars comprise two classes of rotating neutron stars (Soft Gamma Repeaters (SGRs) and Anomalous X-ray Pulsars), whose X-ray emission is powered by an ultrastrong magnetic field, B {approx} 10{sup

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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.

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