Radio Emission from Magnetars

Details Radio Emission from Magnetars Radio Emission from Magnetars

2002-06-25

arxiv.org/abs/astro-ph/0206439v1

Astrophys.J. 580 (2002) L65-L68

Astronomy and Astrophysics

Astrophysics

5 pages, submitted to ApJ Lett

Scientific paper

10.1086/345493

We discuss properties of the expected radio emission from Soft Gamma-ray Repeaters (SGRs) during their bursting activity in the framework of the model of Thompson, Lyutikov and Kulkarni (2002), in which the high energy emission is powered by the dissipation of super-strong magnetic fields in the magnetospheres through reconnection-type events. Drawing on analogies with Solar flares we predict that coherent radio emission resembling solar type-III radio bursts may be emitted in SGRs during X-ray bursts. The radio emission should have correlated pulse profiles with X-rays, narrow-band-type radio spectrum with $\Delta \nu \leq \nu$ with the typical frequency $ \nu \geq 1 $ GHz, and, possibly, a drifting central frequency. We encourage sensitive radio observations of SGRs during the bursting activity.

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