|
|
Paper: |
Towards a New Classification of Early-type Galaxies: An Integral-field View |
Volume: |
390, Pathways Through an Eclectic Universe |
Page: |
227 |
Authors: |
Falcón-Barroso, J.; Bacon, R.; Cappellari, M.; Davies, R.L.; de Zeeuw, P.T.; Emsellem, E.; Krajnovic, D.; Kuntschner, H.; McDermid, R.M.; Peletier, R.F.; Sarzi, M.; van de Ven, G. |
Abstract: |
In this proceedings paper we make use of the two-dimensional stellar kinematics of a representative sample of E and S0 galaxies obtained with the SAURON integral-field spectrograph to reveal that early-type galaxies appear in two broad flavors, depending on whether they exhibit clear large-scale rotation or not. We measure the level of rotation via a new parameter (λR) and use it as a basis for a new kinematic classification that separates early-type galaxies into slow and fast rotators. With the aid of broad-band imaging we will reinforce this finding by comparing our kinematic results to the photometric properties of these two classes. |
|
|
|
|