Thursday, November 25, 2010

Classifying the QPOs of Magnetars

Magnetars after their large flare exhibit quasi-periodic oscillations as they cool.  This paper looks at this modes in GR and includes the effects of the magnetic field with a realistic field geometry.   They find n=0 modes with low l at frequencies of around 10-50 Hz  and n=1 modes at 1 kHz.   The frequencies of course depend on the properties of the underlying star --- wow!


Title: Magneto-elastic torsional oscillations of magnetars

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