BolshoiP (bolshoip)

Description

The BolshoiP simulation belongs to the BolshoiP Project and is kin to the Bolshoi simulation. It has the same simulation volume of (250 Mpc/h)³ and a mass resolution of 1.35 * 10⁸ M_sun/h, but is based on the Planck cosmology.

Details

Box size	250 Mpc/h	side length of the cosmological cube
Number of particles	2048³	total number of dark matter particles
Mass resolution	1.55 * 10⁸ M_sun/h	mass of one dark matter particle
Force resolution	1.0 kpc/h	physical force resolution
Initial redshift	80	redshift at which the simulation started
Cosmology
h	0.70	Hubble parameter
Ω_Λ	0.69289	density parameter for dark energy
Ω_m	0.30711	density parameter for matter (dark matter+baryons)
Ω_b	0.048	density parameter for baryonic matter
n	0.96	normalization of the Power spectrum
σ₈	0.82	amplitude of mass density fluctuation in 8 Mpc/h sphere (at redshift z=0)

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 bolshoip.availhalos	Gives an overview on the snapshots, for which halo data are stored in the FOF or BDM tables.
BDMV bolshoip.bdmv	BDM (Bound Density Maximum) catalogue for all available snapshots, calculated using the standard overdensity criterion with *360ρ_back** (background density). `bdmid = ( snapnum*10⁸ +(number in BDM catalogue) )`
BDMW bolshoip.bdmw	BDM catalogue for all available snapshots, calculated using *200ρ_crit** (critical density) for defining the halo boundary. `bdmid = ( snapnum*10⁸ +(number in BDM catalogue) )`
FOF bolshoip.fof	Main Friends-of-Friends catalogue for all available snapshots, level 0 (relative linking length 0.17); `fofid = (snapnum10 + level)10⁸ +(rank in FOF-file)`
FOF1 bolshoip.fof1	Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.
FOF2 bolshoip.fof2	Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.
FOF3 bolshoip.fof3	Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.
FOF4 bolshoip.fof4	Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.
FOF5 bolshoip.fof5	Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.
Redshifts bolshoip.redshifts	Overview on snapshot numbers (`snapnum`) and corresponding redshifts
Rockstar bolshoip.rockstar	Rockstar halo catalogue with consistent merger trees