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A high-resolution rotation curve of NGC 6822
Published online by Cambridge University Press: 26 May 2016
Abstract
We present a high-resolution rotation curve of the Local Group dwarf irregular NGC 6822, obtained with the Australia Telescope Compact Array. the best curve has a resolution of 8″ or 20 pc and contains some 250 independent points. NGC 6822 is a very dark matter-dominated galaxy. There is no evidence for the presence of a steep density cusp down to scales of ~ 20 pc, in conflict with the predictions of CDM.
- Type
- Part 11: Dwarf Galaxies
- Information
- Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 373 - 374
- Copyright
- Copyright © Astronomical Society of the Pacific 2004
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