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 | Subgroup index number | |

BHMass | BHMass | float | \(10^{10}M_\odot/h\) | Sum of the masses of all blackholes in this subhalo. |

BHMdot | BHMdot | float | \((10^{10}M_\odot/h)/(0.978Gyr/h)\) | Sum of the instantaneous accretion rates \(\dot{M}\) of all blackholes in this subhalo. |

CM | float | ckpc/h | Comoving center of mass of the Subhalo, computed as the sum of the mass weighted relative coordinates of all particles/cells in the Subhalo, of all types. | |

x | CM_x | float | ||

y | CM_y | float | ||

z | CM_z | float | ||

GasMetallicity | GasMetallicity | float | Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of the gas cells bound to this Subhalo, but restricted to cells within twice the stellar half mass radius. | |

GasMetallicityHalfRad | GasMetallicityHalfRad | float | Same as SubhaloGasMetallicity, but restricted to cells within the stellar half mass radius. | |

GasMetallicityMaxRad | GasMetallicityMaxRad | float | Same as SubhaloGasMetallicity, but restricted to cells within the radius of \(V_{max}\). | |

GasMetallicitySfr | GasMetallicitySfr | float | Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of the gas cells bound to this Subhalo, but restricted to cells which are star forming. | |

GasMetallicitySfrWeighted | GasMetallicitySfrWeighted | float | Same as SubhaloGasMetallicitySfr, but weighted by the cell star-formation rate rather than the cell mass. | |

GrNr | GrNr | integer | Index into the Group table of the FOF host/parent of this Subhalo. | |

HalfmassRad | HalfmassRad | float | ckpc/h | Comoving radius containing half of the total mass (SubhaloMass) of this Subhalo. |

HalfmassRadType | float | ckpc/h | Comoving radius containing half of the mass of this Subhalo split by Type (SubhaloMassType). | |

gas | HalfmassRadType_gas | float | ||

dm | HalfmassRadType_dm | float | ||

unused | HalfmassRadType_unused | float | ||

tracers | HalfmassRadType_tracers | float | ||

stars | HalfmassRadType_stars | float | ||

bh | HalfmassRadType_bh | float | ||

IDMostbound | IDMostbound | long | The ID of the particle with the smallest binding energy (could be any type). | |

Len | Len | integer | Total number of member particle/cells in this Subhalo, of all types. | |

LenType | integer | Total number of member particle/cells in this Subhalo, separated by type. | ||

gas | LenType_gas | integer | ||

dm | LenType_dm | integer | ||

unused | LenType_unused | integer | ||

tracers | LenType_tracers | integer | ||

stars | LenType_stars | integer | ||

bh | LenType_bh | integer | ||

Mass | Mass | float | \(10^{10}M_\odot/h\) | Total mass of all member particle/cells which are bound to this Subhalo, of all types. Particle/cells bound to subhaloes of this Subhalo are NOT accounted for. |

MassInHalfRad | MassInHalfRad | float | \(10^{10}M_\odot/h\) | Sum of masses of all particles/cells within the stellar half mass radius. |

MassInHalfRadType | float | \(10^{10}M_\odot/h\) | Sum of masses of all particles/cells (split by type) within the stellar half mass radius. | |

gas | MassInHalfRadType_gas | float | ||

dm | MassInHalfRadType_dm | float | ||

unused | MassInHalfRadType_unused | float | ||

tracers | MassInHalfRadType_tracers | float | ||

stars | MassInHalfRadType_stars | float | ||

bh | MassInHalfRadType_bh | float | ||

MassInMaxRad | MassInMaxRad | float | \(10^{10}M_\odot/h\) | Sum of masses of all particles/cells within the radius of \(V_{max}\). |

MassInMaxRadType | float | \(10^{10}M_\odot/h\) | Sum of masses of all particles/cells (split by type) within the radius of \(V_{max}\). | |

gas | MassInMaxRadType_gas | float | ||

dm | MassInMaxRadType_dm | float | ||

unused | MassInMaxRadType_unused | float | ||

tracers | MassInMaxRadType_tracers | float | ||

stars | MassInMaxRadType_stars | float | ||

bh | MassInMaxRadType_bh | float | ||

MassInRad | MassInRad | float | \(10^{10}M_\odot/h\) | Sum of masses of all particles/cells within twice the stellar half mass radius. |

MassInRadType | float | \(10^{10}M_\odot/h\) | Sum of masses of all particles/cells (split by type) within twice the stellar half mass radius. | |

gas | MassInRadType_gas | float | ||

dm | MassInRadType_dm | float | ||

unused | MassInRadType_unused | float | ||

tracers | MassInRadType_tracers | float | ||

stars | MassInRadType_stars | float | ||

bh | MassInRadType_bh | float | ||

MassType | float | \(10^{10}M_\odot/h\) | Total mass of all member particle/cells which are bound to this Subhalo, separated by type. Particle/cells bound to subhaloes of this Subhalo are NOT accounted for. Note: Wind phase cells are counted as gas (type 0) for SubhaloMassType. | |

gas | MassType_gas | float | ||

dm | MassType_dm | float | ||

unused | MassType_unused | float | ||

tracers | MassType_tracers | float | ||

stars | MassType_stars | float | ||

bh | MassType_bh | float | ||

Parent | Parent | integer | Index into the Subhalo table of the unique SUBF host/parent of this Subhalo. This index is local to the group (i.e. 2 indicates the third most massive subhalo of the parent halo of this subhalo, not the third most massive of the whole snapshot). The values are often zero for all subhalos of a group, indicating that there is no resolved hierarchical structure in that group, beyond the primary subhalo having as direct children all of the secondary subhalos. | |

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 subhalo. |

SFRinHalfRad | SFRinHalfRad | float | \(M_\odot/yr\) | Same as SubhaloSFR, but restricted to cells within the stellar half mass radius. |

SFRinMaxRad | SFRinMaxRad | float | \(M_\odot/yr\) | Same as SubhaloSFR, but restricted to cells within the radius of \(V_{max}\). |

SFRinRad | SFRinRad | float | \(M_\odot/yr\) | Same as SubhaloSFR, but restricted to cells within twice the stellar half mass radius. |

Spin | float | \((kpc/h)(km/s)\) | Total spin per axis, computed for each as the mass weighted sum of the relative coordinate times relative velocity of all member particles/cells. | |

x | Spin_x | float | ||

y | Spin_y | float | ||

z | Spin_z | float | ||

StarMetallicity | StarMetallicity | float | - | Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of the star particles bound to this Subhalo, but restricted to stars within twice the stellar half mass radius. |

StarMetallicityHalfRad | StarMetallicityHalfRad | float | Same as SubhaloStarMetallicity, but restricted to stars within the stellar half mass radius. | |

StarMetallicityMaxRad | StarMetallicityMaxRad | float | - | Same as SubhaloStarMetallicity, but restricted to stars within the radius of \(V_{max}\). |

StellarPhotometrics | float | mag | Eight bands: U, B, V, K, g, r, i, z. Magnitudes based on the summed-up luminosities of all the stellar particles of the group. For details on the bands, see snapshot table for stars. | |

U | StellarPhotometrics_U | float | ||

B | StellarPhotometrics_B | float | ||

V | StellarPhotometrics_V | float | ||

K | StellarPhotometrics_K | float | ||

g | StellarPhotometrics_g | float | ||

r | StellarPhotometrics_r | float | ||

i | StellarPhotometrics_i | float | ||

z | StellarPhotometrics_z | float | ||

StellarPhotometricsMassInRad | StellarPhotometricsMassInRad | float | \(10^{10}M_\odot/h\) | Sum of the mass of the member stellar particles, but restricted to stars within the radius SubhaloStellarPhotometricsRad. |

StellarPhotometricsRad | StellarPhotometricsRad | float | ckpc/h | Radius at which the surface brightness profile (computed from all member stellar particles) drops below the limit of 20.7 mag arcsec\(^{-2}\) in the K band (in comoving units). |

Vel | float | km/s | Peculiar velocity of the group, computed as the sum of the mass weighted velocities of all particles/cells in this group, of all types. No unit conversion is needed. | |

x | Vel_x | float | ||

y | Vel_y | float | ||

z | Vel_z | float | ||

VelDisp | VelDisp | float | km/s | One-dimensional velocity dispersion of all the member particles/cells (the 3D dispersion divided by \(\sqrt{3}\)). |

Vmax | Vmax | float | km/s | Maximum value of the spherically-averaged rotation curve. |

VmaxRad | VmaxRad | float | kpc/h | Comoving radius of rotation curve maximum (where \(V_{max}\) is achieved). |

WindMass | WindMass | float | \(10^{10}M_\odot/h\) | Sum of masses of all wind-phase cells in this subhalo (with Type==4 and BirthTime<=0). |

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 |

Illustris Subfind Subhalo catalog derived with the Subfind 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 Subgroup index number |
BHMass
\(10^{10}M_\odot/h\) Sum of the masses of all blackholes in this subhalo. |
BHMdot
\((10^{10}M_\odot/h)/(0.978Gyr/h)\) Sum of the instantaneous accretion rates \(\dot{M}\) of all blackholes in this subhalo. |
CM ckpc/h Comoving center of mass of the Subhalo, computed as the sum of the mass weighted relative coordinates of all particles/cells in the Subhalo, of all types. | GasMetallicity Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of the gas cells bound to this Subhalo, but restricted to cells within twice the stellar half mass radius. | GasMetallicityHalfRad Same as SubhaloGasMetallicity, but restricted to cells within the stellar half mass radius. | GasMetallicityMaxRad Same as SubhaloGasMetallicity, but restricted to cells within the radius of \(V_{max}\). | GasMetallicitySfr Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of the gas cells bound to this Subhalo, but restricted to cells which are star forming. | GasMetallicitySfrWeighted Same as SubhaloGasMetallicitySfr, but weighted by the cell star-formation rate rather than the cell mass. | GrNr Index into the Group table of the FOF host/parent of this Subhalo. |
HalfmassRad
ckpc/h Comoving radius containing half of the total mass (SubhaloMass) of this Subhalo. |
HalfmassRadType ckpc/h Comoving radius containing half of the mass of this Subhalo split by Type (SubhaloMassType). | IDMostbound The ID of the particle with the smallest binding energy (could be any type). | Len Total number of member particle/cells in this Subhalo, of all types. | LenType Total number of member particle/cells in this Subhalo, separated by type. |
Mass
\(10^{10}M_\odot/h\) Total mass of all member particle/cells which are bound to this Subhalo, of all types. Particle/cells bound to subhaloes of this Subhalo are NOT accounted for. |
MassInHalfRad
\(10^{10}M_\odot/h\) Sum of masses of all particles/cells within the stellar half mass radius. |
MassInHalfRadType \(10^{10}M_\odot/h\) Sum of masses of all particles/cells (split by type) within the stellar half mass radius. |
MassInMaxRad
\(10^{10}M_\odot/h\) Sum of masses of all particles/cells within the radius of \(V_{max}\). |
MassInMaxRadType \(10^{10}M_\odot/h\) Sum of masses of all particles/cells (split by type) within the radius of \(V_{max}\). |
MassInRad
\(10^{10}M_\odot/h\) Sum of masses of all particles/cells within twice the stellar half mass radius. |
MassInRadType \(10^{10}M_\odot/h\) Sum of masses of all particles/cells (split by type) within twice the stellar half mass radius. | MassType \(10^{10}M_\odot/h\) Total mass of all member particle/cells which are bound to this Subhalo, separated by type. Particle/cells bound to subhaloes of this Subhalo are NOT accounted for. Note: Wind phase cells are counted as gas (type 0) for SubhaloMassType. | Parent Index into the Subhalo table of the unique SUBF host/parent of this Subhalo. This index is local to the group (i.e. 2 indicates the third most massive subhalo of the parent halo of this subhalo, not the third most massive of the whole snapshot). The values are often zero for all subhalos of a group, indicating that there is no resolved hierarchical structure in that group, beyond the primary subhalo having as direct children all of the secondary subhalos. | 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 subhalo. |
SFRinHalfRad
\(M_\odot/yr\) Same as SubhaloSFR, but restricted to cells within the stellar half mass radius. |
SFRinMaxRad
\(M_\odot/yr\) Same as SubhaloSFR, but restricted to cells within the radius of \(V_{max}\). |
SFRinRad
\(M_\odot/yr\) Same as SubhaloSFR, but restricted to cells within twice the stellar half mass radius. |
Spin \((kpc/h)(km/s)\) Total spin per axis, computed for each as the mass weighted sum of the relative coordinate times relative velocity of all member particles/cells. |
StarMetallicity
- Mass-weighted average metallicity (Mz/Mtot, where Z = any element above He) of the star particles bound to this Subhalo, but restricted to stars within twice the stellar half mass radius. |
StarMetallicityHalfRad Same as SubhaloStarMetallicity, but restricted to stars within the stellar half mass radius. |
StarMetallicityMaxRad
- Same as SubhaloStarMetallicity, but restricted to stars within the radius of \(V_{max}\). |
StellarPhotometrics mag Eight bands: U, B, V, K, g, r, i, z. Magnitudes based on the summed-up luminosities of all the stellar particles of the group. For details on the bands, see snapshot table for stars. |
StellarPhotometricsMassInRad
\(10^{10}M_\odot/h\) Sum of the mass of the member stellar particles, but restricted to stars within the radius SubhaloStellarPhotometricsRad. |
StellarPhotometricsRad
ckpc/h Radius at which the surface brightness profile (computed from all member stellar particles) drops below the limit of 20.7 mag arcsec\(^{-2}\) in the K band (in comoving units). |
Vel km/s Peculiar velocity of the group, computed as the sum of the mass weighted velocities of all particles/cells in this group, of all types. No unit conversion is needed. |
VelDisp
km/s One-dimensional velocity dispersion of all the member particles/cells (the 3D dispersion divided by \(\sqrt{3}\)). |
Vmax
km/s Maximum value of the spherically-averaged rotation curve. |
VmaxRad
kpc/h Comoving radius of rotation curve maximum (where \(V_{max}\) is achieved). |
WindMass
\(10^{10}M_\odot/h\) Sum of masses of all wind-phase cells in this subhalo (with Type==4 and BirthTime<=0). |
SnapByType | ||||||||||||||||||||||||||||||||||||||||||||||||||
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x | y | z | gas | dm | unused | tracers | stars | bh | gas | dm | unused | tracers | stars | bh | gas | dm | unused | tracers | stars | bh | gas | dm | unused | tracers | stars | bh | gas | dm | unused | tracers | stars | bh | gas | dm | unused | tracers | stars | bh | x | y | z | x | y | z | U | B | V | K | g | r | i | z | x | y | z | gas | dm | unused | tracers | stars | bh |