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The Angular Momentum Problem in CDM Cosmolgies:...
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The Angular Momentum Problem in CDM Cosmolgies: The End of the Beginning?

Abstract

We show, by adopting a plausible model for star formation and energetic feedback in cosmological simulations of galaxy formation, that we are able to alleviate the angular momentum problem which has bedeviled many previous attempts to generate realistic disc galaxies in Cold Dark Matter cosmogonies. This paper highlights the “cooling catastrophe” as manifest in numerical cosmology and describes a simple prescription for modelling the sub-resolution physics of star formation and feedback in Smoothed Particle Hydrodynamic simulations. We show results for angular momentum and disc scale length for simulations with and without feedback.

Authors

Couchman HMP; Thacker RJ

Volume

208

Pagination

pp. 227-236

Publisher

Cambridge University Press (CUP)

Publication Date

January 1, 2003

DOI

10.1017/s0074180900207183

Conference proceedings

Symposium - International Astronomical Union

ISSN

0074-1809
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