Friday, 23 May 2008
Galaxy Size Problem at z=3: Simulated Galaxies Are Too Small
(http://arxiv.org/abs/0805.3150 by M.K. Ryan Joung (Princeton), Renyue Cen (Princeton), Greg Bryan (Columbia))
The authors run zoom simulations and find the simulated galaxies are too small to match the observations after corrections (blue line, bottom panel). I suspect that their feedback isn't strong enough to disrupt the inner star formation though.