Low-acceleration dwarf galaxies as tests of quantised inertia
arXiv:1703.01179 · doi:10.1007/s10509-017-3039-6
Abstract
Dwarf satellite galaxies of the Milky Way appear to be gravitationally bound, but their stars' orbital motion seems too fast to allow this given their visible mass. This is akin to the larger-scale galaxy rotation problem. In this paper, a modification of inertia called quantised inertia or MiHsC (Modified inertia due to a Hubble-scale Casimir effect) which correctly predicts larger galaxy rotations without dark matter is tested on eleven dwarf satellite galaxies of the Milky Way, for which mass and velocity data are available. Quantised inertia slightly outperforms MoND (Modified Newtonian Dynamics) in predicting the velocity dispersion of these systems, and has the fundamental advantage over MoND that it does not need an adjustable parameter.
arXiv comment9 pages, 2 tables, 1 figure
References in corpus (19)
- The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
- Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions
- A comprehensive Maximum Likelihood analysis of the structural properties of faint Milky Way satellites
- Modified Newtonian Dynamics in the Milky Way
- A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy
- Accurate Stellar Kinematics at Faint Magnitudes: application to the Bootes~I dwarf spheroidal galaxy
- The Modified Dynamics as a Vacuum Effect
- Local Group Dwarf Spheroidals: Correlated Deviations from the Baryonic Tully-Fisher Relation
- Dwarf Spheroidals in MOND
- Ursa Major: a missing low-mass CDM halo?
- Revisiting the influence of unidentified binaries on velocity dispersion measurements in ultra-faint stellar systems
- A photometric and spectroscopic study of the new dwarf spheroidal galaxy in Hercules
- Modelling the Pioneer anomaly as modified inertia
- Triangulum II: Possibly a Very Dense Ultra-Faint Dwarf Galaxy
- A near zero velocity dispersion stellar component in the Canes Venatici dwarf spheroidal galaxy
- Inertia from an asymmetric Casimir effect
- Testing quantised inertia on galactic scales
- Minimum accelerations from quantised inertia
- Testing quantised inertia on the emdrive