Download User guide for GADGET-2

User’s guide for GADGET-2
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1
2
3
4
5
Block ID
HDF5 identifier
HEAD
POS
VEL
ID
MASS
Coordinates
Velocities
ParticleIDs
Masses
6
U
InternalEnergy
7
8
RHO
HSML
Density
SmoothingLength
9
POT
Potential
10
ACCE
Acceleration
11
ENDT
RateOfChangeOfEntropy
12
TSTP
TimeStep
Block content
Header
Positions
Velocities
Particle ID’s
Masses (only for particle types with variable masses)
Internal energy per unit mass (only SPH
particles)
Density (only SPH particles)
SPH smoothing length h (only SPH particles)
Gravitational potential of particles (only
when enabled in makefile)
Acceleration of particles (only when enabled in makefile)
Rate of change of entropic function of
SPH particles (only when enabled in
makefile)
Timestep of particles (only when enabled
in makefile)
Table 2: Output blocks defined in GADGET-2’s file formats.
Type
0
1
2
3
4
5
Symbolic Type Name
Gas
Halo
Disk
Bulge
Stars
Bndry
Table 3: Symbolic type names and their corresponding type numbers.
31