We have carried out the following 3 sets of intermediate-size (not quite appropriate, as they are still large enough!) N-body simulations:

• 
  VIRGO simulations (256³ particles)
  
• Higher resolution simulations in smaller boxes(256³ particles)
  
• VLS (512³ particles)
  
  

The page here gives you some information of our work.
Pictures and movies here.

introduction/ sim. parameters/ reference/ data-download

Introduction

Four different cosmological models were simulated in large boxes. The simulations contain 256³ particles each and represent different cosmological models. The calculations were done by the parallel version of AP3M N-body code on two large Cray T3D parallel supercomputers at the Edinburgh Parallel Computing Center and at the Computing Centre of the Max Planck Society in Garching.

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Simulation parameters

Shown in the left panels are projected mass distibutions in a sliced region in the simulation box. Low-density regions which look like "voids" are dark, while red (and yellow) parts are high-density regions. The pictures were created using an adaptive smoothing scheme which assigns to each particle an individual smoothing length. Thus, high density regions are not smoothed at all whereas low density regions are smoothed. (Pictures created by Joerg Colberg)

Standard CDM

	Boxsize 239.5 Mpc/h	2563 particles
	OMEGA = 1.0	LAMBDA = 0.0
	H0 = 50 km/(Mpc sec)	Sigma8 = 0.51
	Mass per particle 22.7 1010M_sun/h

Lambda CDM

	Boxsize 239.5 Mpc/h	2563 particles
	OMEGA = 0.3	LAMBDA = 0.7
	H0 = 70 km/(Mpc sec)	Sigma8 = 0.9
	Mass per particle 6.86 1010M_sun/h

Open CDM

	Boxsize 239.5 Mpc/h	2563 particles
	OMEGA = 0.3	LAMBDA = 0.0
	H0 = 70 km/(Mpc sec)	Sigma8 = 0.85
	Mass per particle 6.86 1010M_sun/h

tau CDM

	Boxsize 239.5 Mpc/h	2563 particles
	OMEGA = 1.0	LAMBDA = 0.0
	H0 = 50 km/(Mpc sec)	Sigma8 = 0.51
	Mass per particle 22.7 1010M_sun/h

Last modified: Wed Oct 31 13:26:23 MET 2001 by Virgo Administrator