Fig. 9 from The Kinematically Measured Pattern Speeds of NGC 2523 and NGC 4245

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The Kinematically Measured Pattern Speeds of NGC 2523 and NGC 4245

Authors: P. Treuthardt, R. Buta, H. Salo, and E. Laurikainen

Treuthardt et al. 2007 The Astronomical Journal 134 1195.

Provider: AAS Journals

Caption: Fig. 9.

Plot of the Toomre stability parameter, Q, vs. radius for NGC 2523 and NGC 4245 using the velocity dispersion data from this paper. For NGC 2523, Q ranges from ﹩0.7\pm 0.1﹩ to ﹩1.6\pm 0.6﹩. For NGC 4245, Q ranges from ﹩0.6\pm 0.1﹩ to ﹩5.0\pm 0.7﹩.

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