MDPL2 (mdpl2)
Description
The MultiDark Planck 2 simulation belongs to the series of MultiDark simulations with Planck cosmology. It is kin to the MDPL simulation, with the same box size, cosmological parameters and particle resolution, but a different initial seed. If you are in doubt whether to use MDPL or MDPL2, we recommend to use MDPL2, since there will be more data products available for this simulation in the future (e.g. Rockstar-catalogues).
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 mdpl2.availhalos |
Gives an overview on the snapshots, for which halo data are stored in the halo catalogues tables. In particular, it gives the number of halos/FOF groups for each snapshot. |
|
FOF mdpl2.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 mdpl2.fof1 |
Friends-of-Friends halo catalogue, level 1 with relative linking length 0.1 |
|
FOF2 mdpl2.fof2 |
Friends-of-Friends halo catalogue, level 2 with relative linking length 0.05 |
|
FOF3 mdpl2.fof3 |
Friends-of-Friends halo catalogue, level 3 with relative linking length 0.025 |
|
FOF4 mdpl2.fof4 |
Friends-of-Friends halo catalogue, level 4 with relative linking length 0.0125 |
|
FOF5 mdpl2.fof5 |
Friends-of-Friends halo catalogue, level 5 with relative linking length 0.00625 |
|
Galacticus mdpl2.galacticus |
Galacticus catalog of semi-analytical galaxies, built using the Rockstar catalog |
|
LinkLength mdpl2.linklength |
Overview on levels for FOF groups and corresponding linking lengths (for FOF, FOF1 – FOF5 tables) |
|
Redshifts mdpl2.redshifts |
Overview on snapshot numbers ( |
|
Rockstar mdpl2.rockstar |
ROCKSTAR halo catalogue with consistent merger trees for all available snapshots. |
|
SAG mdpl2.sag |
SAG catalog of semi-analytical galaxies, built using Rockstar catalog |
|
SAGE mdpl2.sage |
SAGE catalog of semi-analytical galaxies, built using Rockstar catalog |