Dynamical One-Armed Spiral Instability in Differentially Rotating Stars

@inproceedings{Saijo2003DynamicalOS,
  title={Dynamical One-Armed Spiral Instability in Differentially Rotating Stars},
  author={Motoyuki Saijo and Thomas W. Baumgarte and Stuart L. Shapiro},
  year={2003}
}
We investigate the dynamical one-armed spiral instability in differentially rotating stars with both eigenmode analysis and hydrodynamic simulations in Newtonian gravity. We find that the one-armed spiral mode is generated around the corotation radius of the star, and the distribution of angular momentum shifts inwards the corotation radius during the growth of one-armed spiral mode. We also find by investigating the distribution of the canonical angular momentum density that the low T/|W… CONTINUE READING

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