For excited boson stars, the first zero of the fundamental radial mode matches the first critical point of mass, charge, and binding energy for all tested node numbers and self-interactions.
Gravitational Stability of Boson Stars
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abstract
We investigate the stability of general-relativistic boson stars by classifying singularities of differential mappings and compare it with the results of perturbation theory. Depending on the particle number, the star has the following regimes of behavior: stable, metastable, pulsation, and collapse.
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Radial spectra and dynamical signatures of excited boson stars
For excited boson stars, the first zero of the fundamental radial mode matches the first critical point of mass, charge, and binding energy for all tested node numbers and self-interactions.