Bolshoibolshoi.Dens256ivo://aip.gavo.org/bolshoi/q/Dens256GAVO at Leibniz-Institute for Astrophysics PotsdamRiebe K.Harry EnkeLeibnitz-Institut fr Astrophysikhenke@aip.de++49 6221 541837CosmologySimulationDensities for 256^3 grid cells; for some snapnumshttp://gavo.aip.de/tableinfo/bolshoi.Dens256bolshoiBolshoi This is an extract of the Bolshoi simulation data. It is used for
testing and demonstration purposes only. The full data is available at
https://www.cosmosim.org/.bolshoi.dens256Densities for 256^3 grid cells; for some snapnumswebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongindexedprimaryixspatial grid index, x-direction; ix= floor(x/nx); multiply/divide by factors of 2 when comparing with a finer/coarser gridpos.cartesian.xintindexediyspatial grid index, y-direction; iy = floor(y/ny)pos.cartesian.yintindexedizspatial grid index, z-direction; iz = floor(z/nz)pos.cartesian.zintindexedphkeyPeano-Hilbert key; multiply/divide by factors of 8 when comparing with a finer/coarser gridintindexeddensoverdensity, dens = (rho - rho_b)/rho_b, rho_b = mean background density of matterphys.density;arith.ratiofloatindexedsnapnumunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linetime.epochint