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3D N-Body Simulation of the Milky Way with Gas

  • R. Fux
  • D. Friedli
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)

Abstract

We present the first self-consistent 3D barred model of the Milky Way including gas, as an evolved stage of an unsymmetrised N-body simulation with axisymmetric initial conditions (fig.1). The corotation lies at about 4 kpc and the central gas particles have condensed into a nuclear ring/disc. Distortions of the bar and other odd modes in the stellar distribution (a) affect the gas flow by producing one-side gas voids (b) and instabilities of the nuclear component like tilting, warping and off-centering (c-d). These peculiarities may help to reproduce the intriguing asymmetries and densely populated “forbidden” regions in the Galactic HI and CO (lv) maps (e-f). More details are given in the proc. of IAU Coll. 157 “Barred Galaxies”.

Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • R. Fux
    • 1
  • D. Friedli
    • 1
  1. 1.Geneva ObservatorySauvernySwitzerland

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