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Evidence for Light-weight Local Group Dwarf Spheroidal Galaxies
Published online by Cambridge University Press: 26 May 2016
Extract
A simple and natural explanation for the dynamics and morphology of the Local Group Dwarf Spheroidal galaxies, Draco (Dra) and Ursa Minor (UMi), is that they are weakly unbound stellar systems with no significant dark matter component. A gentle, but persistent, Milky Way (MW) tide has left them in their current kinematic and morphological state (the “parametric tidal excitation”). A new test of a dark matter dominated dS potential follows from a careful observation of the “clumpiness” of the dS stellar surface density.
- Type
- Part 11: Dwarf Galaxies
- Information
- Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 365 - 366
- Copyright
- Copyright © Astronomical Society of the Pacific 2004