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HIgh-resolution optical velocity fields of 11 low surface brightness galaxies

Kuzio De Naray, Rachel; McGaugh, Stacy; de Blok, Willem; Bosma, A


We present high-resolution two-dimensional velocity fields from integral field spectroscopy, along with derived rotation curves for 11 low surface brightness galaxies. We fit NFW and pseudoisothermal halo models to the new data combined with previous long-slit and H I data. In most cases, we find the pseudoisothermal halo to better represent the data than the NFW halo, as the NFW concentrations are often lower than expected for a ACDM cosmology. We also compare our results to previous studies...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/505345


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