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Dark Matter in Dwarf Galaxies: High Resolution Observations

  • Alberto D. Bolatto (a1), Joshua D. Simon (a1), Adam Leroy (a1) and Leo Blitz (a1)
Abstract

We present observations and analysis of rotation curves and dark matter halo density profiles in the central regions of four nearby dwarf galaxies. This observing program has been designed to overcome some of the limitations of other rotation curve studies that rely mostly on longslit spectra. We find that these objects exhibit the full range of central density profiles between ρr 0 (constant density) and ρr –1 (NFW halo). This result suggests that there is a distribution of central density slopes rather than a unique halo density profile.

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References
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Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 0074-1809
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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