Boxy/Peanut bulges, vertical buckling and galactic bars

Details Boxy/Peanut bulges, vertical buckling and galactic bars Boxy/Peanut bulges, vertical buckling and galactic bars

2007-10-22

arxiv.org/abs/0710.4054v1

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1017/S1743921308017390

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.

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