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king - tabulate Osipkov-Merritt generalization of King model
king
out=out_file [parameter=value] ...
king tabulates an Osipkov-Merritt-King
model. The output file, written in binary format, may be used with mkommod(1NEMO)
.
The following parameters are recognized:
- out=out_file
- Write a
binary table OsipkovMerrittModel to out_file. No default.
- w0=dimensionless central potential
- This parameter defines the starting
point for the integration of the corresponding differential equations (see
King (1966) or Binney & Tremaine (1987)). Default: -1.0.
- mass=total mass of system
- Used for calculating the real values from the
previously computed unscaled model. Default: 1.0.
- rc=core radius
- The core radius is the scaling parameter for the radius.
It is defined as radius at which the surface brightness falls down to half
of its initial value. Default: 1.0
- nsteps=number of steps
- Number of steps to tabulate. Default: 101
- epsilon=accuracy for integration
- Epsilon is used to define the precision
of the numerical integration Default: 1e-6
- tab=table filename
- If a filename given, the calculated values will also
be tabulated in an ASCII-file. If no filename is given, no table is output.
Default: no table file.
- g=gravitational constant
- to create models with physical quantities, set
this constant. Default: not used. (as it should be)
mkommod(1NEMO)
, king(1NEMO)
, plummer(1NEMO)
, tablst(1NEMO)
Patrick A. Frisch
~/usr/pat king.c
xx-mar-91 V0.9 Initial coding and testing PAF
27-jun-97 V1.0 more scaling options, code cleaning for NEMO V2 PJT/JJM
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