Table of Contents

name

mkking - initial conditions from a King model

synopsis

mkking [parameter=value]

requirement

requires NEMO version 3.0.13 or higher, see http://www.astro.umd.edu/nemo.

description

mkking creates N-body initial conditions from an isotropic single-mass Plummer model and writes them in NEMO snapshot format.

parameters

out=file
The initial conditions are written in NEMO snapshot format to file. If file=-, output is made to stdout. Default: required.
nbody=num
The initial conditions will contain num body masses, positions, and velocities. Default: required.
W0=val
The dimensionless central potential depth of the King model is set to val. Default: required.
seed=num
We will use num as seed for the (pseudo-) random number generator. If num=0, a unique new seed is created from the current value of the time, otherwise, the seed actually provided is used. Default: 0.
time=val
The simulation time associated with the initial conditions is set to val. Default: 0.
mass=val
The total mass of the King model is set to val. Default: 1.
r_c=val
The core radius of the King model is set to val. Default: 1.
r_t=val
If given, the limiting (or truncation) radius of the King model is set to val and the core radius given with the parameter r_c is ignored. No default.
eps=val
If given, a softening length val is written out with each body. No default.
q_ran=t|f
If true, quasi-random rather than pseudo-random numbers are used. In this case, the seed value becomes meaningless. Default: f.
WD_units=t|f
If true, units for mass and r_c or r_t will be taken as solar mass and kpc, respectively, but output units will be in kpc (positions), kpc/Gyr (velocities), and 222288.47 solar masses (implying Newton’s G=1). Default: f.
outputs=t|f
If true, some global properties of the King model, like W0, total mass, core, truncation & half-mass radius, central velocity dispersion and density, and total energy are printed to stderr. Default: f.
table=file
If given, a table with radii r, potential Phi(r), density rho(r), and cumulative mass M(r) are written to file. No default.

see also

mkdehnen(1falcON) , mkplum(1falcON)

files


falcON/doc/user_guide.pdf                         User Guide for falcON

author


Walter Dehnen                              walter.dehnen@astro.le.ac.uk
update history of this man page
18-May-2004    first version of manual  WD


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