Kinematics and Angular Momentum in Early Type Galaxy Halos
Abstract
We use the kinematics of discrete tracers, primarily globular clusters (GCs) and planetary nebulae (PNe), along with measurements of the integrated starlight to explore the assembly histories of early type galaxies. Data for GCs and stars are taken from the SLUGGS wide field, 2-dimensional, chemo-dynamical survey (Brodie et al. 2014). Data for PNe are from the PN.S survey (see contributions by Gerhard and by Arnaboldi, this volume). We find widespread evidence for 2-phase galaxy assembly and intriguing constraints on hierarchical merging under a lambda CDM cosmology.
- Publication:
-
The General Assembly of Galaxy Halos: Structure, Origin and Evolution
- Pub Date:
- August 2016
- DOI:
- arXiv:
- arXiv:1512.01304
- Bibcode:
- 2016IAUS..317..190B
- Keywords:
-
- galaxies: elliptical and lenticular;
- galaxies: star clusters;
- galaxies: formation;
- galaxies: abundances;
- galaxies: kinematics and dynamics;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- proceedings IAU Symp. 317, The General Assembly of Galaxy Halos: Structure, Origin and Evolution, eds. A. Bragaglia, M. Arnaboldi, M. Rejkuba, O. Gerhard, in press, 7 pp, 7 figs