Galactic core-tail structure in BEC dark matter with Kapitza potential

TL;DR

This paper models galactic core-tail structures in Bose-Einstein Condensate dark matter using a Kapitza potential, showing good agreement with observed galaxy rotation curves and inspired by recent experimental realizations.

Contribution

It introduces a novel BEC dark matter model incorporating a Kapitza potential to explain galactic structures, bridging experimental BEC physics and astrophysical phenomena.

Findings

Model reproduces galaxy rotation curves accurately.

Kapitza potential influences the tail region structure.

Inner core profile matches observations.

Abstract

Recently, the experimental realization of a Kapitza potential in a Bose-Einstein Condensate (BEC) has been reported for the first time in literature, motivating further theoretical investigations of such system. At the same time, in the astrophysical context, BEC dark matter models have been widely studied as a possible phenomenological explanation for the dark matter phenomena. We model the galactic structure with an inner cored profile obtained from the ground state equilibrium solution of the Schroedinger-Poisson together with a Kapitza-BEC like interaction for the tail region. We find reasonable agreement of the model with representative galaxy rotation curves available in the SPARC catalogue.