Constraining the dark matter distribution in the centre of early-type barred galaxies

Details Constraining the dark matter distribution in the centre of early-type barred galaxies Constraining the dark matter distribution in the centre of early-type barred galaxies

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dyga.confe...4c&link_type=abstract

"Dynamics of Galaxies, Proceedings of the conference held 6-10 August, 2007 at Pulkovo Observatory, St. Petersburg, Russia. Publ

Computer Science

Scientific paper

The dynamics of a barred galaxy depends on the pattern speed of its bar. The only direct method for measuring the pattern speed of a bar is the Tremaine-Weinberg technique. This method is best suited to the analysis of the distribution and dynamics of the stellar component. Therefore it has been mostly used for early-type barred galaxies. Nearly all the measured bars are as rapidly rotating as they can be. By comparing this result with high-resolution numerical simulations of bars in dark matter halos, it is possible to conclude that these bars reside in maximal disks.

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