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arXiv · 1210.6480

Quasi-Periodic Oscillations in magnetars: linking variability and emission

Caroline D'Angelo
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Abstract

I present recent results studying flare emission in magnetars. Strong quasi-periodic oscillations observed in the tail of giant magnetar flares are frequently interpreted as evidence for global seismic oscillations. I demonstrate that such a global oscillation is not directly observable in the lightcurve. New work suggests the amplitude for the strongest QPO stays nearly constant in the rotation phases where it is observed, which I argue suggests it is produced by an additional emission process from the star.

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Caroline D'Angelo. 2012-10-24. Quasi-Periodic Oscillations in magnetars: linking variability and emission. https://doi.org/10.1017/s1743921312023460

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