• Rachel Kuzio de Naray
  • Stacy S. McGaugh
  • W.J.G. de Blok
  • Albert Bosma
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)


We have obtained 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 for the latter are lower than would be expected from CDM. Cusps can clearly be detected by this method when they are present and the data are of high quality. Yet only one of our six best cases is consistent with a cusp.


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Copyright information

© Springer 2007

Authors and Affiliations

  • Rachel Kuzio de Naray
    • 1
  • Stacy S. McGaugh
    • 1
  • W.J.G. de Blok
    • 2
  • Albert Bosma
    • 3
  1. 1.Astronomy DepartmentUniversity of MarylandUSA
  2. 2.Research School of Astronomy and AstrophysicsAustralian National UniversityAustralia
  3. 3.Observatoire de MarseilleFrance

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