MDPL (mdpl)
Description
The MDPL simulation was performed with the same (1 Gpc/h)3 box size as MDR1, but with more than 6 times higher mass resolution, using nearly 57 billion particles in a cosmology that is consistent with the Planck data (2013). It was performed using the L-Gadget2 code.
Some details can be found in Klypin et al. 2014.
Details
| Box size | 1 Gpc/h | side length of the cosmological cube |
| Number of particles | 38403 | total number of dark matter particles |
| Mass resolution | 1.51*109 Msun/h | mass of one dark matter particle |
| Force resolution | 13 kpc/h (at high z) – 5 kpc/h (low z) | physical force resolution |
| Initial redshift | 120 | redshift at which the simulation started |
| Cosmology | ||
| h | 0.6777 | Hubble parameter |
| ΩΛ | 0.692885 | density parameter for dark energy |
| Ωm | 0.307115 | density parameter for matter (dark matter+baryons) |
| Ωb | 0.048206 | density parameter for baryonic matter |
| n | 0.96 | normalization of the Power spectrum |
| σ8 | 0.8228 | amplitude of mass density fluctuation in 8 Mpc/h sphere (at redshift z=0) |
| Other constants | ||
| G | 6.67428 * 10-8 cm3 g-1 s-2 | Gravitational constant (Rev. Mod. Phys. 80 (2008) 633-730) |
| 1 Mpc | 30.85677 * 1023 cm | 1 Mpc in cm |
| Msun | 1.98892 ± 0.00025 1033 g | Solar mass (Physics Reports 281 (1997) 309) |
Attribution
In order to properly acknowledge our efforts, we request the following paragraph to be included in the "Acknowledgements" section of any publication which makes use of the simulation data above via the CosmoSim or MultiDark database:
Acknowledgements – Database
The CosmoSim database used in this paper is a service by the Leibniz-Institute for Astrophysics Potsdam (AIP). The MultiDark database was developed in cooperation with the Spanish MultiDark Consolider Project CSD2009-00064.
Acknowledgements – Simulations
The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) and the Partnership for Advanced Supercomputing in Europe (PRACE, www.prace-ri.eu) for funding the MultiDark simulation project by providing computing time on the GCS Supercomputer SuperMUC at Leibniz Supercomputing Centre (LRZ, www.lrz.de). The Bolshoi simulations have been performed within the Bolshoi project of the University of California High-Performance AstroComputing Center (UC-HiPACC) and were run at the NASA Ames Research Center.
More information can be found on the credit page.
Tables
| Table | Description |
|---|---|
|
AvailHalos mdpl.availhalos |
Gives an overview on the snapshots, for which halo data are stored in the FOF or BDM tables. It additionally gives the number of halos/FOF groups for each snapshot. |
|
BDMW mdpl.bdmw |
BDM catalogue for all available snapshots, calculated using 200ρcrit (critical density) for defining the halo boundary. |
|
FOF mdpl.fof |
Main Friends-of-Friends catalogue for all available snapshots, level 0. Contrary to the Bolshoi and MDR1 simulation, a relative linking length of 0.20 was used. |
|
FOF1 mdpl.fof1 |
Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups. |
|
FOF2 mdpl.fof2 |
Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups. |
|
FOF3 mdpl.fof3 |
Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups. |
|
FOF4 mdpl.fof4 |
Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups. |
|
FOF5 mdpl.fof5 |
Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups. |
|
LinkLength mdpl.linklength |
Overview on levels for FOF groups and corresponding linking lengths (for FOF, FOF1 – FOF5 tables) |
|
Redshifts mdpl.redshifts |
Overview on snapshot numbers ( |