Damping of Type I X-ray Burst Oscillations by Convection

Details Damping of Type I X-ray Burst Oscillations by Convection Damping of Type I X-ray Burst Oscillations by Convection

2008-03-26

arxiv.org/abs/0803.3814v2

Astronomy and Astrophysics

Astrophysics

7 pages; improvements to introduction and discussion, model and results unchanged; accepted by ApJ

Scientific paper

10.1086/590424

I construct a simple model of the convective burning layer during a type I X-ray burst to investigate the effects convection has on the stability of the layer to nonradial oscillations. A linear perturbation analysis demonstrates that the region is stable to nonradial oscillations when energy transport is convection-dominated, but it is unstable when energy transport is radiation-dominated. Thus, efficient convection always dampens oscillations. These results may explain the nondetection of oscillations during the peak of some X-ray bursts.

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