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The role of the gas in the bar instability. A cosmological approach

Published online by Cambridge University Press:  01 August 2006

Anna Curir ,
Paola Mazzei  and
Giuseppe Murante
Anna Curir
Affiliation:
INAF-Astronomical Observatory of Torino, ITALY email: curir@oato.inaf.it, murante@oato.inaf.it
Paola Mazzei
Affiliation:
INAF-Astronomical Observatory of Padova, ITALY email:paola.mazzei@oapd.inaf.it
Giuseppe Murante
Affiliation:
INAF-Astronomical Observatory of Torino, ITALY email: curir@oato.inaf.it, murante@oato.inaf.it
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Abstract

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The growth and the evolution of the bar instability in stellar-gaseous disks embedded in a dark matter halo evolving in a cosmological framework is explored. We point out the impact of different gas fractions on the bar formation, inside disks of different disk-to-halo mass ratio.

Keywords

galaxies: spiralsstructureevolutionhalo; cosmology: theory

References

Curir, A., Mazzei, P., Murante, G. 2006, A&A, 447, 453Google Scholar