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

J. Falcon-Barroso, R. Bacon, M. Cappellari, R.L. Davies, P.T. de Zeeuw, E. Emsellem, D. Krajnovic, H. Kuntschner, R.M. McDermid, R.F. Peletier, M. Sarzi, G. van de Ven

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    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.
    Original languageEnglish
    Title of host publicationIn: Pathways Through an Eclectic Universe - ASP Conf Series 390
    PublisherAstronomical Society of the Pacific
    Pages227-231
    ISBN (Print)978-1-58381-651-6, 978-1-58381-650-9
    Publication statusPublished - 2008

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