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tag value n array description
pos #particles float ** return array of particles position (size=n*3)
vel #particles float ** return array of particles velocitie (size=n*3)
mass #particles float ** return array of particles velocitie (size=n)
acc #particles float ** return array of particles acceleration (size=n*3)
pot #particles float ** return array of particles potential (size=n)
rho #particles float ** return array of particles density (size=n)
hsml #particles float ** return array of particles hydro smooth length (size=n)
temp #particles float ** return array of particles temperature (size=n)
age #particles float ** return array of particles age (size=n)
metal #particles float ** return array of particles metallicity (size=n)
u #particles float ** return array of particles internal energy (size=n)
id #particles int ** return array of particles index (size=n)
aux #particles float ** return auxiliary array (size=n)
keys #particles float ** return keys array (size=n)
tag value value description
ngas int * #gas particles
nhalo int * #dark matter particles
ndisk int * #old stars particles
nstars int * #stars particles
nbulge int * #bulge particles
nbndry int * #bndry particles
nsel int * #selected particles
time float * snapshot time