Journal article
Constraining Global Properties of the Draco Dwarf Spheroidal Galaxy
Abstract
By fitting a flexible stellar anisotropy model to the observed surface brightness and line-of-sight velocity dispersion profiles of Draco we derive a sequence of cosmologically plausible two-component (stars + dark matter) models for this galaxy. The models are consistent with all the available observations and can have either cuspy Navarro-Frenk-White or flat-cored dark matter density profiles. The dark matter halos either formed relatively …
Authors
Mashchenko S; Sills A; Couchman HM
Journal
The Astrophysical Journal, Vol. 640, No. 1, pp. 252–269
Publisher
American Astronomical Society
Publication Date
March 20, 2006
DOI
10.1086/499940
ISSN
0004-637X