arxiv: astro-ph/0210544 · v1 · submitted 2002-10-24 · 🌌 astro-ph

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

G. Aronica (1) , E. Athanassoula (2) , M. Bureau (3) , A. Bosma (2) , R.-J. Dettmar (1) , D. Vergani (4) , M. Pohlen (5) ((1) Astronomisches Institut , Ruhr-Universitaet Bochum

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Germany (2) Observatoire de Marseille France (3) Hubble Fellow Columbia Astrophysics Laboratory Columbia University USA (4) Radio Astronomisches Institut Universitaet Bonn (5) Instituto de Astrofisica de Canarias Spain)

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classification 🌌 astro-ph

keywords galaxiescalculationsn-bodyorbitalpeanut-shapedsimulationsanalysedapproaches

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We present a near-infrared K_n-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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Comparing peanut-shaped `bulges' to N-body simulations and orbital calculations

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