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arXiv · astro-ph/0201276

H alpha rotation curves of Low Surface Brightness galaxies

W. J. G. de Blok·A. Bosma
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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.

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W. J. G. de Blok, A. Bosma. 2002-01-16. H alpha rotation curves of Low Surface Brightness galaxies. https://doi.org/10.1051/0004-6361%3A20020080

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