Disc instabilities and semi-analytic modelling of galaxy formation

E. Athanassoula

doi:10.1111/j.1745-3933.2008.00541.x

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arXiv · 0808.0016

Disc instabilities and semi-analytic modelling of galaxy formation

E. Athanassoula

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Abstract

The Efstathiou, Lake and Negroponte (1982) criterion can not distinguish bar stable from bar unstable discs and thus should not be used in semi-analytic galaxy formation simulations. I discuss the reasons for this, illustrate it with examples and point out shortcomings in the recipes used for spheroid formation. I propose an alternative, although much less straightforward, possibility.

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E. Athanassoula. 2008-07-31. Disc instabilities and semi-analytic modelling of galaxy formation. https://doi.org/10.1111/j.1745-3933.2008.00541.x

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