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        Towards a New Classification of Early-type Galaxies: An Integral-field View

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        902246.pdf (PDF, 428Kb)
        Author
        Falcon-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.
        Attention
        2299/2162
        Abstract
        In this proceedings paper we make use of the two-dimensional stel- lar 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.
        Publication date
        2008
        Published in
        In: Pathways Through an Eclectic Universe - ASP Conf Series 390
        Other links
        http://hdl.handle.net/2299/2162
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