v2_prof

clustertools.analysis.profiles.v2_prof(cluster, mmin=None, mmax=None, rmin=None, rmax=None, nrad=20, vmin=None, vmax=None, emin=None, emax=None, kwmin=0, kwmax=15, npop=None, indx=None, bins=None, projected=False, coord=None, normalize=False, plot=False, **kwargs)

Measure the radial variation in the mean squared velocity

Parameters:

clusterclass

StarCluster

mmin/mmaxfloat

minimum and maximum stellar mass

rmin/rmaxfloat

minimum and maximum stellar radii

nradint

number of radial bins

vmin/vmaxfloat

minimum and maximum stellar velocity

emin/emaxfloat

minimum and maximum stellar energy

kwmin/kwmaxfloat

minimum and maximum stellar type (kw)

npopint

population number

indxfloat

user defined boolean array from which to extract the subset

binsfloat

User defined bins in the form of (rlower,rmean,rupper) (default: None)

projectedbool

use projected values and constraints (default:False)

coordstr

choose what coordinate the mean velocity profile is to be returned in (default None returns (vx**2.+vy**2.+vz**2.)^1/2). Alternatively can ask for ‘vr’, ‘vphi’, or ‘vtheta’ for spherical coordinate velocity dispersions.

normalizebool

normalize radial bins by cluster’s half-mass radius (default: False)

plotbool

plot the velocity disperions profile (default: False)

Returns:

rprofnfloat

natural log of radius (normalized by half-mass radius)

vproffloat

mean velocity

Other Parameters:

kwragsstr

key word arguments for plotting