Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-05-08
Astronomy and Astrophysics
Astrophysics
11 pages, 12 postscipt figures
Scientific paper
10.1046/j.1365-8711.2000.03109.x
We carry out N-body simulations of several non-Gaussian structure formation models, including Peebles' isocurvature cold dark matter model, cosmic string models, and a model with primordial voids. We compare the evolution of the cluster mass function in these simulations with that predicted by a modified version of the Press-Schechter formalism. We find that the Press-Schechter formula can accurately fit the cluster evolution over a wide range of redshifts for all of the models considered, with typical errors in the mass function of less than 25%, considerably smaller than the amount by which predictions for different models may differ. This work demonstrates that the Press-Schechter formalism can be used to place strong model independent constraints on non-Gaussianity in the universe.
Baker Jonathan E.
Robinson James J.
No associations
LandOfFree
Evolution of the cluster abundance in non-Gaussian models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evolution of the cluster abundance in non-Gaussian models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the cluster abundance in non-Gaussian models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-448342