Speaker
Description
We study the nonlinear evolution of scalar field dark matter galaxy halos that undergo a broad family of sudden disturbances created by a stretching or compression of the ground state, or spontaneous collapse from an almost uniform background. To date we have worked in reduced dimensions (spherical symmetry, plus exploratory attempts in cylindrical geometry for consideration of dark matter filaments). This, while on the one hand restrictive, gives good access to very fine resolution of the matter wave field and thus high velocity components such as scalar field bursts. We find generic features of the halos that are correlated with the time elapsed since the excitation, which may potentially find use for classifying the age of dark matter halos.
| Other topic / keywords: | Scalar field Dark matter |
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