Morphology and kinematics in thick box-peanut bulge galaxies

Astronomy and Astrophysics – Astronomy

Scientific paper

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Radio Lines: Galaxies, Methods: Data Analysis, Galaxies: Kinematics And Dynamics

Scientific paper

Both, observational and theoretical results support the close connection between bars and box/peanut-shaped bulges in spiral galaxies. However, for the sub-class of thick box/peanut-shaped bulges, an environmental process instead of an internal mechanism is suggested to account for the prominence of the box/peanut component. In this paper a multi-wavelength study of the morphology and the kinematics of a sample of thick box/peanut-shaped bulges is presented. The results suggest a scenario in which interaction events play a significant role in the history of thick box/peanut-shaped bulge galaxies. Most likely these sources have experienced a mass infall.

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