Toy models for galaxy formation versus simulations

• Published in: Monthly notices of the Royal Astronomical Society Vol. 435; no. 2; pp. 999 - 1019
• Main Authors: Dekel, A., Zolotov, A., Tweed, D., Cacciato, M., Ceverino, D., Primack, J. R.
• Format: Journal Article
• Language: English
• Published: London Oxford University Press 21.10.2013
• Subjects: Accretion disks; Approximation; Cosmology; Simulation; Star & galaxy formation; galaxies: formation; galaxies: evolution; dark matter; galaxies: haloes

We describe simple useful toy models for key processes of galaxy formation in its most active phase, at z > 1, and test the approximate expressions against the typical behaviour in a suite of high-resolution hydro-cosmological simulations of massive galaxies at z=4−1. We address in particular the...