clustertools.util.output module

For quickly writing key cluster properties to previously opened output files

clustertools.util.output.fortout(cluster, filename='fort.10', sse=False, sse_filename='fort.12', reset_nbody=False, reset_nbody_mass=True, reset_nbody_radii=True)

Output a snapshot in NBODY6 fort.10 format

Parameters:

clusterclass

StarCluster

filenamestr

name of file to be written to (default: ‘fort.10’)

ssebool

include file containing stellar evolution information

sse_filenamestr

name of stellar evolution file to be written to (default: ‘fort.12’)

reset_nbodybool

reset nbody scaling parameters (default: False)

reset_nbody_massbool

reset nbody mass scaling parameter (default: False)

reset_nbody_radiibool

reset nbody radii scaling parameter (default: False)

Returns:

None

clustertools.util.output.gyrout(cluster, filename='init.nemo.dat', eps=None, epsunits=None, ro=8.275, vo=239.23725000000002)

Output a snapshot in gyrfalcon/NEMO format

• Note that units are converted to Walter Dehnen units (WDunits in GYRFALCON)

Parameters:

clusterclass

StarCluster

filenamestr

name of file to be written to (default: ‘init.nemo.dat’)

epsarray

values for softening length of individual particles (default : None)

epsunitsstr

units for softening lengths (default: cluster.units)

rofloat

galpy spaital scaling parameter, in case epsunits==’galpy’ (default: solar_ro)

vofloat

galpy velocity scaling parameter, in case epsunits==’galpy’ (default: solar_vo)

Returns:

None

clustertools.util.output.snapout(cluster, filename, energies=False, radec=False)

Output a snapshot in clustertools format

• clustertools column format is mass,x,y,z,vx,vy,vz,id,kwtype where

positions and velocities are in cartiesian coordinates, id is the star id, and kwtype is the stars stellar evolution type - units and coordinate system will be cluster.units and cluster.origin. - if energies==True, columns for kinetic energy, potential energy, and total energy will be added - if radec==True, columns for RA, Dec, distance, Proper Motion in RA, Proper Motion in Dec, and radial velocity will be added

Parameters:

clusterclass

StarCluster

filenamwstr

name of file to be written to

energiesbool

include energies in output (default: False)

radecbool

include sky coordinates of stars (default: False)

Returns:

None

clustertools.util.output.sseout(cluster, filename)

Output simple stellar evolution information in clustertools format

• clustertools column format is initial mass, kw type, current mass, epoch and ospin

masses are in solar masses, epoch and spin are in Nbody6 units

Parameters:

clusterclass

StarCluster

filenamwstr

name of file to be written to

Returns:

None