Reference frames in general relativity and the galactic rotation curves
L. Filipe O. Costa, José Natário, Francisco Frutos─Alfaro, M. Söffel
Abstract
The authors extend the International Astronomical Union (IAU) reference system to a special class of spacetimes that admit non-shearing congruences of observers which, at infinity, have zero vorticity and acceleration. As an application, they analyze several known spacetimes and show that the galaxies' rotation curves cannot be explained through gravitomagnetic effects without the need for dark matter.
Topics & Concepts
PhysicsGeneral relativityGalaxy rotation curveGalaxyRotation (mathematics)Congruence relationVorticityDark matterTheory of relativityClassical mechanicsMathematical physicsAstrophysicsTheoretical physicsGeometryPure mathematicsVortexGalaxy formation and evolutionMathematicsThermodynamicsPulsars and Gravitational Waves ResearchCosmology and Gravitation TheoriesGeophysics and Gravity Measurements