UniverseMachine
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.
Active Filters
reset all
μ : {{filter.aggs.avg?filter.render(filter.aggs.avg):'no data'}}

Range:

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

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

Select field to filter
Random Sample
Python Query

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

Fields Dictionary
FieldVariableTypeUnitsDescription
fieldfieldbyteCANDELS field (COSMOS, EGS, GOODS-N, GOODS-S, UDS)
realizationrealizationbyteRealization between 0-7
coord RARAfloatdegRight Ascension
coord DecDecfloatdegDeclination
zZ(los)floatRedshift including redshift-space distortions.
z_nopecZ(cosmo)floatCosmological redshift---i.e., without redshift-space distortions.
ScaleScalefloatScale factor of the timestep from which the halo was taken
gal_idIDlongHalo ID (unique across all timesteps)
DescIDDescIDlongID of descendant halo (or -1 at z = 0)
UPIDUPIDlong-1 for central halos, otherwise, ID of largest parent halo
PositionfloatMpc
XXfloatPosition of halo relative to axes of lightcone (distance along lightcone) in comoving Mpc/h
YYfloatPosition of halo relative to axes of lightcone (distance perpendicular to lightcone X-axis) in comoving Mpc/h
ZZfloatPosition of halo relative to axes of lightcone (distance perpendicular to lightcone X-axis) in comoving Mpc/h
Velocityfloatkm/s
vel xVXfloatPeculiar velocity in physical (i.e., non-comoving) km/s, relative to lightcone axes
vel yVYfloatPeculiar velocity in physical (i.e., non-comoving) km/s, relative to lightcone axes
vel zVZfloatPeculiar velocity in physical (i.e., non-comoving) km/s, relative to lightcone axes
MMfloat\(10^{10}M_\odot\)Halo mass (Bryan & Norman (BN98) 1998 virial mass)
VVfloatkm/sHalo \(v_{max}\) (physical)
MPMPfloat\(10^{10}M_\odot\)Halo peak historical mass (BN98 virial mass)
VMPVMPfloatkm/sHalo vmax at the time when peak mass was reached
RRfloatMpcHalo raidus (BN98 vir, co-moving kpc/h)
Rank1Rank1float\(\Delta v_{max}\)Halo rank (see UniverseMachine paper)
M_stellarSMfloat\(10^{10}M_\odot\)True stellar mass
ICLICLfloat\(10^{10}M_\odot\)True intracluster stellar mass
SFRSFRfloat\(M_\odot/yr\)True star formation rate
obs_SMobs_SMfloat\(10^{10}M_\odot\)Observed stellar mass, including random & systematic errors
obs_SFRobs_SFRfloat\(M_\odot/yr\)Observed star formation rate (SFR), including random & systemic errors
SSFRSSFRfloatObserved SSFR
SM/HMSM/HMfloatSM/HM ratio
UV1500_restobs_UVfloat\(M_{1500} AB\)Observed UV Magnitude
A_UVA_UVfloatAB MagUV attenuation from dust
About Catalog

These lightcones have been populated using the UniverseMachine empirical model. For more details please see Behroozi et al. (2019) and Somerville et al. (2020).

Data Release: v1 2019-07-26.

Data also available at peterbehroozi.com.

More under:

Active Filters

{{filter.field.name}}

Format

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Raw Data
fieldCANDELS field (COSMOS, EGS, GOODS-N, GOODS-S, UDS)realizationRealization between 0-7coord RA
degRight Ascension
coord Dec
degDeclination
zRedshift including redshift-space distortions.z_nopecCosmological redshift---i.e., without redshift-space distortions.ScaleScale factor of the timestep from which the halo was takengal_idHalo ID (unique across all timesteps)DescIDID of descendant halo (or -1 at z = 0)UPID-1 for central halos, otherwise, ID of largest parent haloPositionMpcVelocitykm/sM
\(10^{10}M_\odot\)Halo mass (Bryan & Norman (BN98) 1998 virial mass)
V
km/sHalo \(v_{max}\) (physical)
MP
\(10^{10}M_\odot\)Halo peak historical mass (BN98 virial mass)
VMP
km/sHalo vmax at the time when peak mass was reached
R
MpcHalo raidus (BN98 vir, co-moving kpc/h)
Rank1
\(\Delta v_{max}\)Halo rank (see UniverseMachine paper)
M_stellar
\(10^{10}M_\odot\)True stellar mass
ICL
\(10^{10}M_\odot\)True intracluster stellar mass
SFR
\(M_\odot/yr\)True star formation rate
obs_SM
\(10^{10}M_\odot\)Observed stellar mass, including random & systematic errors
obs_SFR
\(M_\odot/yr\)Observed star formation rate (SFR), including random & systemic errors
SSFRObserved SSFRSM/HMSM/HM ratioUV1500_rest
\(M_{1500} AB\)Observed UV Magnitude
A_UV
AB MagUV attenuation from dust
XPosition of halo relative to axes of lightcone (distance along lightcone) in comoving Mpc/hYPosition of halo relative to axes of lightcone (distance perpendicular to lightcone X-axis) in comoving Mpc/hZPosition of halo relative to axes of lightcone (distance perpendicular to lightcone X-axis) in comoving Mpc/hvel xPeculiar velocity in physical (i.e., non-comoving) km/s, relative to lightcone axesvel yPeculiar velocity in physical (i.e., non-comoving) km/s, relative to lightcone axesvel zPeculiar velocity in physical (i.e., non-comoving) km/s, relative to lightcone axes