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Comparing peanut-shaped `bulges' to N-body simulations and orbital calculations

G. Aronica, E. Athanassoula, M. Bureau, A. Bosma, R. -J. Dettmar, D. Vergani, M. Pohlen

astro-pharXiv:astro-ph/0210544

Abstract

We present a near-infrared Kn-band photometric study of edge-on galaxies with a box/peanut-shaped `bulge'. The morphology of the galaxies is analysed using unsharp masking and fits to the vertical surface brightness profiles, and the results are compared to N-body simulations and orbital calculations of barred galaxies. Both theoretical approaches reproduce the main structures observed.

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