Document Type
Article
Publication Date
4-24-2006
Abstract
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 and find that including the new two-dimensional optical data does not significantly alter the halo parameters but does decrease the uncertainties by roughly a factor of 2. © 2006. The American Astronomical Society. All rights reserved.
Keywords
dark matter, galaxies: fundamental parameters, galaxies: kinematics and dynamics
Publication Title
Astrophysical Journal, Supplement Series
Grant
505956
Rights
© The American Astronomical Society. All rights reserved. This content is free to access, download, and share. For all other uses, you must obtain permission to reuse content: https://journals.aas.org/article-charges-and-copyright/#AAS_material
Recommended Citation
High-Resolution Optical Velocity Fields of 11 Low Surface Brightness Galaxies. Rachel Kuzio de Naray et al 2006 ApJS 165 461
Manuscript Version
Final Publisher Version