2003/11/03 by E. M. Corsini, Enrico Maria Corsini, J. A. L. Aguerri +4
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0311042
2 pages, 1 figure. To appear in Proc. IAU Symp. 220, "Dark matter in galaxies", eds. S. Ryder, D.J. Pisano, M. Walker, & K. Freeman (San Francisco: ASP)
arxiv created 2003/11/03 · openalex publication_date 2003/11/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 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.