Towards a new classification of early-type galaxies: an integral-field view

Jesus Falcon-Barroso*, Roland Bacon, Roger L. Davies, P. Tim De Zeeuw, Eric Emsellem, Davor Krajnovic, Harald Kuntschner, Richard M. McDermid, Reynier F. Peletier, Marc Sarzi, Glenn van de Ven

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


In this proceedings paper we make use of the two-dimensional stellar kinematics of a representative sample of E and SO 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 (lambda(R)) 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 publicationPathways through an eclectic universe
EditorsJ. H. Knapen, T. J. Mahoney, A. Vazdekis
Place of PublicationSan Francisco, CA
PublisherAstronomical Society of the Pacific
Number of pages5
ISBN (Print)9781583816509
Publication statusPublished - 2008
Externally publishedYes
EventConference on Pathways Through an Eclectic Universe - Santiago del Teide, Spain
Duration: 23 Apr 200727 Apr 2007

Publication series

NameAstronomical society of the pacific conference series
PublisherAstronomical Society of the Pacific


ConferenceConference on Pathways Through an Eclectic Universe
CitySantiago del Teide



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