The mass content of the Sculptor dwarf spheroidal galaxy
Abstract
We present a new determination of the mass content of the Sculptor dwarf spheroidal galaxy, based on a novel approach which takes into account the two distinct stellar populations present in this galaxy. This method helps to partially break the well-known mass-anisotropy degeneracy present in the modelling of pressure-supported stellar systems.
- Publication:
-
The Galaxy Disk in Cosmological Context
- Pub Date:
- March 2009
- DOI:
- 10.1017/S1743921308027397
- arXiv:
- arXiv:0807.2334
- Bibcode:
- 2009IAUS..254...61B
- Keywords:
-
- techniques: spectroscopic;
- stars: kinematics;
- galaxies: dwarf;
- galaxies: individual (Sculptor);
- dark matter;
- Astrophysics
- E-Print:
- 6 pages, 3 figures. To appear in the proceedings of IAU Symposium 254 "The Galaxy disk in a cosmological context", Copenhagen, June 2008