Boxy/Peanut bulges, vertical buckling and galactic bars

Abstract

Boxy/peanut bulges in disk galaxies have been associated to stellar bars. In this talk, we discuss the different properties of such bulges and their relation with the corresponding bar, using a very large sample of a few hundred numerical N-body simulations. We present and inter-compare various methods of measuring the boxy/peanut bulge properties, namely its strength, shape and possible asymmetry. Some of these methods can be applied to both simulations and observations. Our final goal is to get correlations that will allow us to obtain information on the boxy/peanut bulge for a galaxy viewed face-on as well as information on the bars of galaxies viewed edge-on.

4 pages. To appear in the proceedings of IAU Symposium 245 "Formation and Evolution of Galaxy Bulges", M. Bureau, E. Athanassoula, and B. Barbuy, eds

References in corpus (5)

• What determines the strength and the slowdown rate of bars ?
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• Evolution of Stellar Bars in Live Axisymmetric Halos: Recurrent Buckling and Secular Growth
• Box- and peanut-shaped bulges: I. Statistics
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Cited by in corpus (5)

• Structural and photometric properties of barred galaxies from the Auriga cosmological simulations
• Barred spiral galaxies in modified gravity theories
• Is the late buckling stage inevitable in the bar life?
• Bars and boxy/peanut bulges in thin and thick discs III. Boxy/peanut bulge formation and evolution in presence of thick discs
• Formation and evolution of boxy/peanut bulges in the Auriga cosmological simulations