generate.particle.id.table.4: Make Table of Particle IDs, Location and Velocities

In Will-McD/ENSTvisualise: What the Package Does (One Line, Title Case)

Make Table of Particle IDs, Location and Velocities

Description

Returns a data.table of each of the particles of the selected species in the cluster. The data table contains each particles location and velocity in SI units relative to the center of Mass (each particles velocity and location in converted to SI units from L210N1024NR simulation units).

The particles as assigned an ID by their index in the table. The table has dimensions = (6, number of particles of selected species)

Usage

generate.particle.id.table.4(
  x,
  v,
  select.species = 1,
  species = track$particle$species,
  p.mass = c(1.17e+08, 6.29e+08)
)

Arguments

x	A matrix, array type object containing particle positions Mpc/h
v	A matrix, array type object containing particle velocities km/s
select.species	An intiger value of either 1 or 2. 1 = baryonic particles (gas) 2 = dark matter particles Naturally set to 1. This is used to calculate the enstrophy, which is dependant on gas particles, therefore species 1.
species	An array type object containing the species number for every particle within the halo being observed.
p.mass	A vector object containing the mass values for each of the species within the simulation in simulaiton units Solar Mass / h, in the order of the species indexes. For L210N1024NR where there are only baryon (1) and dark matter (2) therefore p.mass is naturally set to (1.17e8, 6.29e8). This is used for calculating the center of mass of each snapshot or frame, so that each particle can be centered on the c.o.m.

Examples

To make a data.table of only the baryons within a halo,

x = interpolate.positions.2(track, snapshots, t.plot[frame])[[1]]
v = interpolate.positions.2(track, snapshots, t.plot[frame])[[2]]
generate.particle.id.table.4(x, v, select.species = 1, species=track$particle$species, p.mass = c(1.17e8, 6.29e8))

Will-McD/ENSTvisualise documentation built on June 24, 2022, 5:13 p.m.