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Scalar Field Dark Matter: non-spherical collapse and late time behavior

2 Pith papers cite this work. Polarity classification is still indexing.

2 Pith papers citing it
abstract

We show the evolution of non-spherically symmetric balls of a self-gravitating scalar field in the Newtonian regime or equivalently an ideal self-gravitating condensed Bose gas. In order to do so, we use a finite differencing approximation of the Shcr\"odinger-Poisson (SP) system of equations with axial symmetry in cylindrical coordinates. Our results indicate: 1) that spherically symmetric ground state equilibrium configurations are stable against non-spherical perturbations and 2) that such 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 the scalar field overdensities tolerate non-spherical contributions to the profile of the initial fluctuation.

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gr-qc 2

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2019 1 2012 1

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UNVERDICTED 2

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representative citing papers

The three dynamical fates of Boson Stars

gr-qc · 2019-07-18 · unverdicted · novelty 3.0

Numerical classification of spherically symmetric boson star evolutions into stable, black-hole-forming, and exploding categories via constrained evolution of the Einstein-Klein-Gordon system.

Dynamical Boson Stars

gr-qc · 2012-02-27 · unverdicted · novelty 2.0

Boson stars are particle-like solutions in general relativity that model dark matter, black hole mimickers, and binary systems.

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Showing 2 of 2 citing papers.

  • The three dynamical fates of Boson Stars gr-qc · 2019-07-18 · unverdicted · none · ref 5 · internal anchor

    Numerical classification of spherically symmetric boson star evolutions into stable, black-hole-forming, and exploding categories via constrained evolution of the Einstein-Klein-Gordon system.

  • Dynamical Boson Stars gr-qc · 2012-02-27 · unverdicted · none · ref 50 · internal anchor

    Boson stars are particle-like solutions in general relativity that model dark matter, black hole mimickers, and binary systems.