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Fast bars in SBO galaxies

Published online by Cambridge University Press:  26 May 2016

Enrico Maria Corsini ,
J. A. L. Aguerri  and
Victor P. Debattista
Enrico Maria Corsini
Affiliation:
Dipartimento di Astronomia, Università di Padova, Padova, Italy
J. A. L. Aguerri
Affiliation:
Instituto de Astrofísica de Canarias, La Laguna, Spain
Victor P. Debattista
Affiliation:
Institut für Astronomie, ETH Hönggerberg, Zürich, Switzerland

Abstract

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We measured the bar pattern speed in a sample of 7 SB0 galaxies using the Tremaine-Weinberg method. This represents the largest sample of galaxies for which the bar pattern speed has been measured this way. All the observed bars are as rapidly rotating as they can be. We compared this result with recent high-resolution N-body simulations of bars in cosmologically-motivated dark matter halos, and conclude that these bars are not located inside centrally concentrated halos.

Type
Part 8: Bars
Information
Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 271 - 272
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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