Galaxy model 1 :
Model    plummer NEMO model baredisk NEMO model expdisk NEMO model disk NEMO model homsph NEMO model polytrope NEMO model spiral NEMO model one particle, mass=1, pos=0,0,0 vel=0,0,0 premade galactICS Milky Way A model 1799 particles premade Dubinski Andromeda model 4096 particles premade Dubinski Milky Way model 4096 particles premade Dubinski Andromeda model 410 particles premade Dubinski Milky Way model 410 particles premade Dubinski Milky Way model 4098 particles 10x disk premade Dubinski Milky Way model 4098 particles 10x halo premade Dubinski Milky Way model 1639 particles halo premade Dubinski Milky Way model 1639 particles disk premade Dubinski Milky Way model 820 particles bulge premade Dubinski Andromeda model 1639 particles halo premade Dubinski Andromeda model 1639 particles disk premade Dubinski Andromeda model 820 particles bulge premade Sellwood galactic bulge 4381 particles none
Number of particles for NEMO models (<= 50000)
Scale factor   type mass and velocities positions and velocities, retain virial ratio positions none
Rotation about axes (e.g. 0,90,0)   order (e.g. zyz)
Shift (e.g. 0,.5,0) positionvelocity
Z-spin angular frequency (+ is counterclockwise)

Integration:
Type    NEMO hackcode1 integrator without MD-GRAPE2 acceleration Pomona integrator Runge Kutta 4th-order with MD-GRAPE2 acceleration Pomona integrator Taylor 2nd-order with MD-GRAPE2 acceleration Pomona integrator Leapfrog 2nd-order with MD-GRAPE2 acceleration Pomona integrator Euler 1st-order with MD-GRAPE2 acceleration Pomona integrator Runge Kutta 4th-order host CPU Pomona integrator Taylor 2nd-order host CPU Pomona integrator Leapfrog 2nd-order host CPU Pomona integrator Euler 1st-order host CPU
Number of iterations (<=5000)
Output state every nth interation, n=
dt (<=1)    Softening factor (<=1)

Display:
Plot observation plane    xy yz xz    Plot range (-x:x) for all axes    .25 .5 1 2 4 8 10 20 40 60 100 160 200 400 Animated GIF of evolution    yes no
Image and velocity maps    yes no    Radial profiles    yes no
Slit spectrogram simulation    yes no    position angle   origin (x,y)   width
NEMO command log for debugging    yes no

Technical assistance from Dr. Bryan Penprase, Pomona College; Dr. P.J. Teuben, Univ. of Maryland; Bruce Elmegreen, IBM; and the Japanese institutes RIKEN and Peta is gratefully acknowledged. NBodyLab was developed by Dr. Bryan E. Penprase and Interconnect Technologies through a grant to Dr. Bryan Penprase of Pomona College from the Fletcher Jones Foundation. Copyright (c) 2002 Interconnect Technologies Corp. and Pomona College.