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astro-ph2002
New Evidence for Proton Cyclotron Resonance in a Magnetar Strength Field from SGR 1806-20
Alaa I. Ibrahim, Jean H. Swank, William Parke
A great deal of evidence has recently been gathered in favor of the picture that Soft Gamma Repeaters and Anomalous X-Ray Pulsars are powered by ultra-strong magnetic fields (B > 1…
astro-ph2002
Discovery of Cyclotron Resonance Features in the Soft Gamma Repeater SGR 1806-20
Alaa I. Ibrahim, Samar Safi-Harb, Jean H. Swank +3
We report evidence of cyclotron resonance features from the Soft Gamma Repeater SGR 1806-20 in outburst, detected with the Rossi X-ray Timing Explorer in the spectrum of a long, co…