Search results for "Large core"

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Cores and Cusps in Warm Dark Matter Halos

2011

The apparent presence of large core radii in Low Surface Brightness galaxies has been claimed as evidence in favor of warm dark matter. Here we show that WDM halos do not have cores that are large fractions of the halo size: typically, r_core/r_200 < 0.001. This suggests an astrophysical origin for the large cores observed in these galaxies, as has been argued by other authors.

PhysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxyCore (optical fiber)Large coreWarm dark matterHaloSurface brightnessAstrophysics::Galaxy AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysics
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