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Boxy/peanut bulges, vertical buckling and galactic bars

Published online by Cambridge University Press:  01 July 2007

Inma Martinez-Valpuesta  and
E. Athanassoula
Inma Martinez-Valpuesta
Affiliation:
Instituto de Astrofísica de Canarias, C/Via Láctea, s/n, 38200, La Laguna, Tenerife, Spain LAM, OAMP, 2 Place Le Verrier, F-13004 Marseille, France
E. Athanassoula
Affiliation:
LAM, OAMP, 2 Place Le Verrier, F-13004 Marseille, France
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Abstract

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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.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S245: Formation and Evolution of Galaxy Bulges , July 2007 , pp. 103 - 106
Copyright
Copyright © International Astronomical Union 2008

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