PIG_{id}: Particle data within each halo(=group=FoFgroup), organized by halos
Detailed data structure:
Feature  Size  Unit  Description 

GroupID  [Nhalo, 6]  None 

LengthByType  [Nhalo, 6]  None 

OffsetByType  [Nhalo, 6]  None 

MassByType  [Nhalo, 6]  1e10Msun/h 

Mass  [Nhalo, 6]  1e10Msun/h 

Firstpos  [Nhalo, 3]  ckpc/h 

MassCenterPosition  [Nhalo, 3]  ckpc/h 

MassCenterVelocity  [Nhalo, 3]  (1/a)km/s 

Imom  [Nhalo, 3]  unit 

StarFormationRate  [Nhalo,1]  (1e10 Msun)/(980 Myr) 

BlackholeAccretionRate  [Nhalo,1]  (1e10 Msun)/(980 Myr) 

BlackholeMass  [Nhalo,1]  1e10 Msun/h 

MinID  [Nhalo,1]  None 

Detailed data structure:
Feature  Size  Unit  Description 

ID  [Npart,1]  None 

GroupID  [Npart,1]  None 

Mass  [Npart,1]  1e10 Msun/h 

Position  [Npart,3]  ckpc/h 

Velocity  [Npart,3]  (1/a)(km/s) 

Density  [Npart,1]  (1e10 Msun/h)/(ckpc/h)^{3} 

Potential  [Npart,1]  (km/s)^{2}/a 

Detailed data structure:
Feature  Size  Unit  Description 

Internal Energy  [Ngas,1]  (km/s)^{2} 

Entropy  [Ngas,1]  [km/s]^{2}/((1e10 Msun/h)/(kpc/h)^{3})^{(gamma1)} 

Pressure  [Ngas,1]  [km/s]^{2}*((1e10 Msun/h)/(kpc/h)^{3})*a 

EgyWtDensity  [Ngas,1]  (1e10 Msun/h)/(ckpc/h)^{3} 

ElectronAbundance  [Ngas,1]  unitless 

SmoothingLength  [Ngas,1]  ckpc/h 

Generation  [Ngas,1]  unitless 

H2Fraction  [Ngas,1]  unitless 

Metallicity  [Ngas,1]  unitless 

NeutralHydrogenFraction  [Ngas,1]  unitless 

StarFormationRate  [Ngas,1]  Msun/yr(different from FOF) 

Data structure:
Data structure:
Detailed data structure:
Feature  Size  Unit  Description 

StarFormationTime  [Nstar,1]  unitless 

Metallicity  [Nstar,1]  unitless 

Generation  [Nstar,1]  unitless 

Data structure:
Detailed data structure:
Feature  Size  Unit  Description 

BlackholeAccretionRate  [Nbh,1]  (1e10Msun)/(980 Myr) 

Mass  [Nbh,1]  1e10 Msun/h 

BlackholeMass  [Nbh,1]  1e10 Msun/h 

BlackholeProgenitors  [Nbh,1]  unitless 

BlackholeLastMergerID  [Nbh,1]  unitless 

BlackholePressure  [Nbh,1]  [km/s]^{2}*((1e10 Msun/h)/(kpc/h)^{3})*a 

BlackholeMinPotPos  [Nbh,3]  ckpc/h 

BlackholeGasVel  [Nbh,3]  (1/a)(km/s) 

BlackholeMinPotVel  [Nbh,3]  (1/a)(km/s) 

Generation  [Nbh,1]  unitless 
