2007

Numerical Simulations of Oscillating Soliton Stars: Excited States in Spherical Symmetry and Ground State Evolutions in 3D

Balakrishna, Jayashree, Bondarescu, Ruxandra, Daues, Gregory et al.

Understand

Excited state soliton stars are studied numerically for the first time.

The stability of spherically symmetric S-branch excited state oscillatons under radial perturbations is investigated using a 1D code.
We find that these stars are inherently unstable either migrating to the ground state or collapsing to black holes.
Higher excited state configurations are observed to cascade through intermediate excited states during their migration to the ground state.

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