[BUNDLES\]KEPLER [/VSYSTEM Value] /VELOCITY R Function(R)
Use the functional form specified by Function(R) for the rotation ve-
locity as a function of Radius. The default is the Keplerian law KE-
PLER_VMASS*sqrt(R/100).
Note: This can allow to use the KEPLER command to handle rotation
curves for galaxies, for example. However, the choice of radial units is
not obvious in this case. It can be made simple by setting the "dis-
tance" KEPLER_DIST to 1 pc, so that the radii R are then just in arcsec-
ond.
Gildas manager
2023-06-01