H alpha rotation curves of Low Surface Brightness galaxies

Abstract

We present high-resolution rotation curves of a sample of 26 low surface brightness galaxies. From these curves we derive mass distributions using a variety of assumptions for the stellar mass-to-light ratio. We show that the predictions of current Cold Dark Matter models for the density profiles of dark matter halos are inconsistent with the observed curves. The latter indicate a core-dominated structure, rather than the theoretically preferred cuspy structure.

Accepted for A&A, full version with high-res figures available at http://www.atnf.csiro.au/~edeblok/papers/bosma.ps.gz

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• A Universal SFDM Halo Mass for the Andromeda and Milky Way's dSphs?
• Delayed Stellar Mass Assembly in the Low Surface Brightness Dwarf Galaxy KDG215
• A WDM model for the evolution of galactic halos
• Deconvolution density estimation with heteroscedastic errors using SIMEX
• Bose-Einstein Condensate Dark Matter Halos confronted with galactic rotation curves
• Nuclear star clusters as probes of dark matter halos: the case of the Sagittarius Dwarf Spheroidal Galaxy
• The galaxy halo formation in the absence of violent relaxation and a universal density profile of the halo center
• Low surface brightness galaxies mass profiles as a consequence of galactic evolution
• Composite self-interacting dark matter and Higgs
• Fundamental properties of the dark and the luminous matter from Low Surface Brightness discs
• A Recent Starbust in the Low Surface Brightness Galaxy UGC 628
• Radial HI Profiles at the Periphery of Galactic Disks: The Role of Ionizing Background Radiation
• Dark energy from the gas of wormholes
• Galactic dynamics in the presence of scalaron: A perspective from $\mathbf{f}(\mathbf{R})$ gravity
• General circular velocity relation of a test particle in a 3D gravitational potential: application to the rotation curves analysis and total mass determination of UGC 8490 and UGC 9753
• Comparative testing of dark matter models with 15 HSB and 15 LSB galaxies
• Dynamical origin of neutrino masses and dark matter from a new confining sector
• Dynamical disequilibrium in dwarf galaxies: rethinking gas dynamics, rotation curves, and dark matter inference
• The Fourcade-Figueroa galaxy: a clearly disrupted superthin edge-on galaxy
• Effect of dark matter halo substructures on galaxy rotation curves
• Dark Energy and Extending the Geodesic Equations of Motion: Connecting the Galactic and Cosmological Length Scales
• The kinematical structure of gravitationally lensed arcs
• Data-driven modeling of rotation curves with artificial neural networks
• Dark matter as a condensate: Deduction of microscopic properties
• Rotation Curve of Galaxies by the Force Induced by Mass of Moving Particles
• What is the amount of baryonic dark matter in galaxies?
• Scattering meets absorption in dark matter detection
• Effect of dark matter halos on the orbital and escape dynamics of barred galaxies
• Galactic rotation curves in Einstein's conformal gravity
• Dark Matter Universal Properties in Galaxies
• Dark Matter Phase Transition Constrained at O(0.1) eV with LSB Rotation Curves