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The gaseous haloes of disc galaxies

F. Fraternali·T. Oosterloo·J. J. Binney·R. Sancisi
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Abstract

The study of gas outside the plane of disc galaxies is crucial to understanding the circulation of material within a galaxy and between galaxies and the intergalactic environment. We present new HI observations of the edge-on galaxy NGC891, which show an extended halo component lagging behind the disc in rotation. We compare these results for NGC891 with other detections of gaseous haloes. Finally, we present a dynamical model for the formation of extra-planar gas.

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F. Fraternali, T. Oosterloo, J. J. Binney, R. Sancisi. 2005-10-26. The gaseous haloes of disc galaxies. https://doi.org/10.1007/978-1-4020-5573-7_44

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