Two Dimensional Velocity Fields of Low Surface Brightness Galaxies
Two Dimensional Velocity Fields of Low Surface Brightness Galaxies
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Two Dimensional Velocity Fields of Low Surface Brightness Galaxies. Kuzio de Naray, R., McGaugh, S.S., de Blok, W.J.G., & Bosma, A. 2005, Mass Profiles and Shapes of Cosmological Structures, eds. G. Mamon, F. Combes, C. Deffayet & B. Fort (EDP Sciences), 285-286
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Abstract
We present high resolution two dimensional velocity fields from integral field spectroscopy along with derived rotation curves for nine low surface brightness galaxies. This is a positive step forward in terms of both data quality and number of objects studied. We fit NFW and pseudo-isothermal halo models to the observations. We find that the pseudo-isothermal halo better represents the data in most cases than the NFW halo, as the resulting concentrations are lower than would be expected for CDM.