Scaling relations in early-type galaxies from integral-field stellar kinematics
Abstract
Early-type galaxies (ETGs) satisfy a now classic scaling relation Re ∝ σ1.2eI-0.8e, the Fundamental Plane (FP; Djorgovski & Davis 1987; Dressler et al. 1987), between their size, stellar velocity dispersion and mean surface brightness. A significant effort has been devoted in the past twenty years to try to understand why the coefficients of the relation are not the ones predicted by the virial theorem Re ∝ σ2eI-1e.
- Publication:
-
Highlights of Astronomy
- Pub Date:
- November 2010
- DOI:
- 10.1017/S1743921310008343
- arXiv:
- arXiv:0908.1904
- Bibcode:
- 2010HiA....15...81C
- Keywords:
-
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- E-Print:
- 1 page, no figures, LaTeX. Invited talk to Joint Discussion 01 "Dark Matter in Early-Type Galaxies". To appear in Highlights of Astronomy, Vol. 15, Proc. of the XXVIIth IAU General Assembly, Rio de Janeiro, Brazil, August 2009, eds. L. V. E. Koopmans &