NIR Imaging of the Box/Peanut Bulge in NGC 4302

  • R.-J. Dettmar
  • A. Ferrara
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)


The central, spheroidal component of spiral galaxies is frequently found to be “box- or peanut” (b/p) shaped. More than 30% of edge-on galaxies may show this phenomenon (Dettmar 1995). To explain this large frequency a very common process for the origin of this specific shape is required. N-body simulations have shown that this can be attributed to instabilities and resonances caused by bars in spiral disks (e. g., Combes et al. 1990, Raha et al. 1991).


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Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • R.-J. Dettmar
    • 1
  • A. Ferrara
    • 2
  1. 1.Astronomisches Institut der Ruhr-UniversitätBochumGermany
  2. 2.Osservatorio Astrofisico di ArcetriFirenzeItaly

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