Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-05-26
Astronomy and Astrophysics
Astrophysics
15 pages, 5 figures, submitted to MNRAS Sept. 1997
Scientific paper
10.1046/j.1365-8711.1998.01976.x
A model of the gravitationally evolved dark matter distribution, in the Eulerian space, is developed. It is a simple extension of the excursion set model that is commonly used to estimate the mass function of collapsed dark matter haloes. In addition to describing the evolution of the dark matter itself, the model allows one to describe the evolution of the Eulerian space distribution of the haloes. It can also be used to describe density profiles, on scales larger than the virial radius, of these haloes, and to quantify the way in which matter flows in and out of Eulerian cells. When the initial Lagrangian space distribution is white noise Gaussian, the model suggests that the Inverse Gaussian distribution should provide a reasonably good approximation to the evolved Eulerian density field, in agreement with numerical simulations. Application of this model to clustering from more general Gaussian initial conditions is discussed at the end.
No associations
LandOfFree
An excursion set model for the distribution of dark matter and dark matter haloes 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 An excursion set model for the distribution of dark matter and dark matter haloes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An excursion set model for the distribution of dark matter and dark matter haloes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-113520