Journal article
Is There Evidence for Flat Cores in the Halos of Dwarf Galaxies? The Case of NGC 3109 and NGC 6822
Abstract
Two well-studied dwarf galaxies, NGC 3109 and NGC 6822, present some of the strongest observational support for a flat core at the center of galactic dark matter (DM) halos. We use detailed, cosmologically motivated numerical models to investigate the systematic effects and the accuracy of recovering parameters of the galaxies. Some of our models match the observed structure of the two galaxies remarkably well. Our analysis shows that the …
Authors
Valenzuela O; Rhee G; Klypin A; Governato F; Stinson G; Quinn T; Wadsley J
Journal
The Astrophysical Journal, Vol. 657, No. 2, pp. 773–789
Publisher
American Astronomical Society
Publication Date
March 10, 2007
DOI
10.1086/508674
ISSN
0004-637X