Stability of charged boson stars

Details Stability of charged boson stars Stability of charged boson stars

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..231..433j&link_type=abstract

Physics Letters B, Volume 231, Issue 4, p. 433-438.

Physics

12

Scientific paper

I study the dynamical stability of spherically symmetric gravitational equilibria of scalars coupled to a U(1) gauge field. I derive the pulsation equation, which governs the time evolution of the infinitesimal radial oscillations as well as a variational principle for its eigenvalues. The eigenvalues are real also in the case where the equilibrium configurations have nodes. The equilibrium configurations with a central density bigger than ϱcrit, corresponding to the critical mass, are dynamically unstable.

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