http://arxiv.org/abs/1404.5279
We propose a mechanism for the damping of density oscillation modes in multi-component compact stars. The mechanism is the periodic conversion between different phases, i.e. the movement of their interface, induced by pressure oscillations in the star. The damping grows nonlinearly with the amplitude of the mode. We study in detail the case of r-modes in a hybrid star with a sharp interface, and we find that this mechanism can saturate the r-mode at a low saturation amplitude and could therefore be the dominant r-mode saturation mechanism in hybrid stars.
M. Alford, S. Han and K. Schwenzer
Tue, 22 Apr 14
43/54
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