2018/10/17 by Emma Kun, Zoltán Keresztes, Saurya Das +2
Physics and Astronomy · #Astrophysics #Baryon #Bose–Einstein condensate #Boson #Cold Atom Physics and Bose-Einstein Condensates #Cosmology and Gravitation Theories #Dark matter #Galaxy #Gravitation #Graviton #Particle physics #Physics #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #Yukawa potential #astro-ph.CO #astro-ph.GA #gr-qc
paper · pdf · doi:10.3390/sym10100520
published as Symmetry 2018, 10, 520 · 13 pages, 1 figure, 2 tables, published in Symmetry
openalex publication_date 2018/10/17 · arxiv created 2019/05/10 · arxiv updated 2019/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 12 dwarf galaxies. The baryonic component is modeled 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 10 − 26 eV / c 2 , three orders of magnitude stronger than the limit derived from recent gravitational wave detections.