Abstract
We show for the first time the evolution of non-spherically symmetric balls of a self-gravitating scalar field in the Newtonian regime. In order to do so, we use a finite differencing approximation of the Shcrödinger-Poisson (SP) system of equations with axial symmetry in cylindrical coordinates. Our results indicate that spherically symmetric equilibrium configurations of the SP system are late-time attractors for non-spherically symmetric initial profiles of the scalar field, which is a generalization of such behavior for spherically symmetric initial profiles. Our system and the boundary conditions used, work as a model of scalar field dark matter collapse after the turnaround point. In such case, we have found that spherically symmetric halos are late time attractor solutions of possible axisymmetric initial scalar field overdensities.
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Bernal, A., Guzmán, F.S. (2007). Late Time Behavior of Non Spherical Collapse of Scalar Field Dark Matter. In: Carramiñana, A., Guzmán, F.S., Matos, T. (eds) Solar, Stellar and Galactic Connections Between Particle Physics and Astrophysics. Astrophysics and Space Science Proceedings. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-5575-1_12
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DOI: https://doi.org/10.1007/978-1-4020-5575-1_12
Publisher Name: Springer, Dordrecht
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