Plot type:
Histogram bins the data by a single field and displays count of objects per bin.
Heatmap bins the data by two fields and displays count as color.
Conditional distribution bins the data by one field and displays the distribution of a second field within that bin as a boxplot (range and quartiles).
Shows a scatterplot of a (random subset) of actual data points.

For log functionality, set the filter to enable only positive values.

For log functionality, set the filter to enable only positive values.

Count:
Choose whether the object count per bin is shown in linear or log scale.
Count is shown on the Y axis.
Count is shown on the color (Z) axis.

Range:

{{filter.render(filter.aggs.min)}}

{{filter.render(filter.aggs.max)}}

Select field to filter

Example python code to apply the above filters and retrieve data. To use, download and install this module .

Field | Variable | Type | Units | Description |
---|---|---|---|---|

simulation | simulation | byte | e.g. 'Illustris-1' or 'Illustris-2-Dark'. | |

snap | snapshot | short | snapshot number | |

time | time | float | Scalefactor of the snapshot corresponding to this group catalog. | |

z | redshift | float | Redshift of the snapshot corresponding to this group catalog. | |

id | id | integer | Group index number | |

BHMass | BHMass | float | \(10^{10}M_\odot/h\) | Sum of the BH_Mass field of all blackholes (type 5) in this group. |

\(\dot{M}_{\rm BH}\) | BHMdot | float | \((10^{10}M_\odot/h)/(0.978Gyr/h)\) | Sum of the BH_Mdot field of all blackholes (type 5) in this group. |

CM | float | ckpc/h | Center of mass of the group, computed as the sum of the mass weighted relative coordinates of all particles/cells in the group, of all types. Comoving coordinate. (Available only for the Illustris-3 run) | |

\({\rm CM}_x\) | CM_x | float | ||

\({\rm CM}_y\) | CM_y | float | ||

\({\rm CM}_z\) | CM_z | float | ||

FirstSub | FirstSub | integer | Index into the Subhalo table of the first/primary/most massive Subfind group within this FoF group. Note: This value is signed (or should be interpreted as signed)! In this case, a value of -1 indicates that this FoF group has no subhalos. | |

GasMetallicity | GasMetallicity | float | Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of all gas cells in this FOF group. | |

\(N_{\rm part}\) | Len | integer | Integer counter of the total number of particles/cells of all types in this group. | |

LenType | integer | Integer counter of the total number of particles/cells, split into the six different types, in this group. Note: Wind phase cells are counted as stars (type 4) for GroupLenType. | ||

\(N_{\rm gas}\) | LenType_gas | integer | ||

\(N_{\rm DM}\) | LenType_dm | integer | ||

unused | LenType_unused | integer | ||

tracers | LenType_tracers | integer | ||

\(N_{\rm stars}\) | LenType_stars | integer | ||

\(N_{\rm BH}\) | LenType_bh | integer | ||

\(M_{\rm tot}\) | Mass | float | \(10^{10}M_\odot/h\) | Sum of the individual masses of every particle/cell, of all types, in this group. |

MassType | float | \(10^{10}M_\odot/h\) | Sum of the individual masses of every particle/cell, split into the six different types, in this group. Note: Wind phase cells are counted as gas (type 0) for GroupMassType. | |

\(M_{\rm gas}\) | MassType_gas | float | ||

\(M_{\rm DM}\) | MassType_dm | float | ||

unused | MassType_unused | float | ||

tracers | MassType_tracers | float | ||

\(M_{\star}\) | MassType_stars | float | ||

\(M_{\rm BH}\) | MassType_bh | float | ||

Nsubs | Nsubs | integer | Count of the total number of Subfind groups within this FoF group. | |

Pos | float | ckpc/h | Spatial position within the periodic box of the maximum bound particle. Comoving coordinate. | |

x | Pos_x | float | ||

y | Pos_y | float | ||

z | Pos_z | float | ||

SFR | SFR | float | \(M_\odot/yr\) | Sum of the individual star formation rates of all gas cells in this group. |

StarMetallicity | StarMetallicity | float | Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of all star particles in this FOF group. | |

vel | float | km/s/a | Velocity of the group, computed as the sum of the mass weighted velocities of all particles/cells in this group, of all types. The peculiar velocity is obtained by multiplying this value by \(1/a.\) | |

\(v_x\) | Vel_x | float | ||

\(v_y\) | Vel_y | float | ||

\(v_z\) | Vel_z | float | ||

WindMass | WindMass | float | \(10^{10}M_\odot/h\) | Sum of the individual masses of all wind phase gas cells (type 4, BirthTime <= 0) in this group. |

M_Crit200 | M_Crit200 | float | \(10^{10}M_\odot/h\) | Total Mass of this group enclosed in a sphere whose mean density is 200 times the critical density of the Universe, at the time the halo is considered. |

M_Crit500 | M_Crit500 | float | \(10^{10}M_\odot/h\) | Total Mass of this group enclosed in a sphere whose mean density is 500 times the critical density of the Universe, at the time the halo is considered. |

M_Mean200 | M_Mean200 | float | \(10^{10}M_\odot/h\) | Total Mass of this group enclosed in a sphere whose mean density is 200 times the mean density of the Universe, at the time the halo is considered. |

M_TopHat200 | M_TopHat200 | float | \(10^{10}M_\odot/h\) | Total Mass of this group enclosed in a sphere whose mean density is \(\Delta_c\) times the critical density of the Universe, at the time the halo is considered. \(\Delta_c\) derives from the solution of the collapse of a spherical top-hat perturbation (fitting formula from Bryan+ 1998, http://adsabs.harvard.edu/abs/1998ApJ...495...80B). The subscript 200 can be ignored. |

R_Crit200 | R_Crit200 | float | ckpc/h | Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is 200 times the critical density of the Universe, at the time the halo is considered. |

R_Crit500 | R_Crit500 | float | ckpc/h | Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is 500 times the critical density of the Universe, at the time the halo is considered. |

R_Mean200 | R_Mean200 | float | ckpc/h | Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is 200 times the mean density of the Universe, at the time the halo is considered. |

R_TopHat200 | R_TopHat200 | float | ckpc/h | Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is \(\Delta_c\) times the critical density of the Universe, at the time the halo is considered. |

SnapByType | long | |||

gas | SnapByType_gas | long | ||

dm | SnapByType_dm | long | ||

unused | SnapByType_unused | long | ||

tracers | SnapByType_tracers | long | ||

stars | SnapByType_stars | long | ||

bh | SnapByType_bh | long | ||

FuzzByType | long | |||

gas | FuzzByType_gas | long | ||

dm | FuzzByType_dm | long | ||

unused | FuzzByType_unused | long | ||

tracers | FuzzByType_tracers | long | ||

stars | FuzzByType_stars | long | ||

bh | FuzzByType_bh | long |

Illustris FoF Halo catalog derived with a standard friends-of-friends (FoF) algorithm. Any publication using these data should cite Vogelsberger+ (2014) and Nelson+ (2015).

simulation e.g. 'Illustris-1' or 'Illustris-2-Dark'. | snap snapshot number | time Scalefactor of the snapshot corresponding to this group catalog. | z Redshift of the snapshot corresponding to this group catalog. | id Group index number |
BHMass
\(10^{10}M_\odot/h\) Sum of the BH_Mass field of all blackholes (type 5) in this group. |
\(\dot{M}_{\rm BH}\)
\((10^{10}M_\odot/h)/(0.978Gyr/h)\) Sum of the BH_Mdot field of all blackholes (type 5) in this group. |
CM ckpc/h Center of mass of the group, computed as the sum of the mass weighted relative coordinates of all particles/cells in the group, of all types. Comoving coordinate. (Available only for the Illustris-3 run) | FirstSub Index into the Subhalo table of the first/primary/most massive Subfind group within this FoF group. Note: This value is signed (or should be interpreted as signed)! In this case, a value of -1 indicates that this FoF group has no subhalos. | GasMetallicity Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of all gas cells in this FOF group. | \(N_{\rm part}\) Integer counter of the total number of particles/cells of all types in this group. | LenType Integer counter of the total number of particles/cells, split into the six different types, in this group. Note: Wind phase cells are counted as stars (type 4) for GroupLenType. |
\(M_{\rm tot}\)
\(10^{10}M_\odot/h\) Sum of the individual masses of every particle/cell, of all types, in this group. |
MassType \(10^{10}M_\odot/h\) Sum of the individual masses of every particle/cell, split into the six different types, in this group. Note: Wind phase cells are counted as gas (type 0) for GroupMassType. | Nsubs Count of the total number of Subfind groups within this FoF group. | Pos ckpc/h Spatial position within the periodic box of the maximum bound particle. Comoving coordinate. |
SFR
\(M_\odot/yr\) Sum of the individual star formation rates of all gas cells in this group. |
StarMetallicity Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of all star particles in this FOF group. | vel km/s/a Velocity of the group, computed as the sum of the mass weighted velocities of all particles/cells in this group, of all types. The peculiar velocity is obtained by multiplying this value by \(1/a.\) |
WindMass
\(10^{10}M_\odot/h\) Sum of the individual masses of all wind phase gas cells (type 4, BirthTime <= 0) in this group. |
M_Crit200
\(10^{10}M_\odot/h\) Total Mass of this group enclosed in a sphere whose mean density is 200 times the critical density of the Universe, at the time the halo is considered. |
M_Crit500
\(10^{10}M_\odot/h\) Total Mass of this group enclosed in a sphere whose mean density is 500 times the critical density of the Universe, at the time the halo is considered. |
M_Mean200
\(10^{10}M_\odot/h\) Total Mass of this group enclosed in a sphere whose mean density is 200 times the mean density of the Universe, at the time the halo is considered. |
M_TopHat200
\(10^{10}M_\odot/h\) Total Mass of this group enclosed in a sphere whose mean density is \(\Delta_c\) times the critical density of the Universe, at the time the halo is considered. \(\Delta_c\) derives from the solution of the collapse of a spherical top-hat perturbation (fitting formula from Bryan+ 1998, http://adsabs.harvard.edu/abs/1998ApJ...495...80B). The subscript 200 can be ignored. |
R_Crit200
ckpc/h Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is 200 times the critical density of the Universe, at the time the halo is considered. |
R_Crit500
ckpc/h Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is 500 times the critical density of the Universe, at the time the halo is considered. |
R_Mean200
ckpc/h Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is 200 times the mean density of the Universe, at the time the halo is considered. |
R_TopHat200
ckpc/h Comoving Radius of a sphere centered at the GroupPos of this Group whose mean density is \(\Delta_c\) times the critical density of the Universe, at the time the halo is considered. |
SnapByType | FuzzByType | ||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|

\({\rm CM}_x\) | \({\rm CM}_y\) | \({\rm CM}_z\) | \(N_{\rm gas}\) | \(N_{\rm DM}\) | unused | tracers | \(N_{\rm stars}\) | \(N_{\rm BH}\) | \(M_{\rm gas}\) | \(M_{\rm DM}\) | unused | tracers | \(M_{\star}\) | \(M_{\rm BH}\) | x | y | z | \(v_x\) | \(v_y\) | \(v_z\) | gas | dm | unused | tracers | stars | bh | gas | dm | unused | tracers | stars | bh |