Dark Matter as a Non-Relativistic Bose-Einstein Condensate with Massive Gravitons
arXiv:1905.04336 · doi:10.3390/sym10100520
Abstract
We confront a non-relativistic Bose--Einstein Condensate (BEC) model of light bosons interacting gravitationally either through a Newtonian or a Yukawa potential with the observed rotational curves of dwarf galaxies. The baryonic component is modelled as an axisymmetric exponential disk and its characteristics are derived from the surface luminosity profile of the galaxies. The purely baryonic fit is unsatisfactory, hence a dark matter component is clearly needed. The rotational curves of five galaxies could be explained with high confidence level by the BEC model. For these galaxies, we derive: (i) upper limits for the allowed graviton mass; and (ii) constraints on a velocity-type and a density-type quantity characterizing the BEC, both being expressed in terms of the BEC particle mass, scattering length and chemical potential. The upper limit for the graviton mass is of the order of , three orders of magnitude stronger than the limit derived from recent gravitational wave detections.
13 pages, 1 figure, 2 tables, published in Symmetry
References in corpus (12)
- Dynamics of dark energy
- Dark Energy and the Accelerating Universe
- Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
- The rotation curves shapes of late-type dwarf galaxies
- Axions: Bose Einstein Condensate or Classical Field?
- Effective field theory of modified gravity with two scalar fields: dark energy and dark matter
- Dark matter and dark energy from Bose-Einstein condensate
- Friedmann branes with variable tension
- Quantum cosmology of (loop) quantum gravity condensates: An example
- Polytropic dark matter flows illuminate dark energy and accelerated expansion
- A solution for galactic disks with Yukawian gravitational potential
- Spectrum of Cosmic Microwave Fluctuations and the Formation of Galaxies in a Modified Gravity Theory