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Starbursts in isolated galaxies: burst modes in coupled star-gas systems

Published online by Cambridge University Press:  01 August 2006

Christian Theis  and
Joachim Köppen
Christian Theis
Affiliation:
Institute of Astronomy, Univ. of Vienna, Austria, email: theis@astro.univie.ac.at
Joachim Köppen
Affiliation:
Observatoire Astronomique de Strasbourg, France, email: koppen@newb6.u-strasbg.fr
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We studied the stability properties of isolated star forming dwarf galaxies with the aim to identify star burst modes. The impact of the stellar birth function (parametrization, IMF), the stellar feedback and the ISM model on the galactic star formation history was investigated. We focussed especially on dynamically driven star bursts induced by stellar feedback. We applied a one-zone model for a star-gas system coupled by both mass and energy transfer. Additionally, we extended the classical closed box network for active dynamical evolution (Theis 2004). This allows for a simple, but consistent description of the coupling between the dynamical state of a galaxy and its internal properties like star formation activity or the thermal state of the interstellar medium.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 480
Copyright
Copyright © International Astronomical Union 2007

References

Theis, Ch. 2005, in: Hüttemeister, S. et al. (eds.), The Evolution of Starbursts (AIP Conf. Proc.), Vol. 783, p. 57Google Scholar