galpy.potential.NFWPotential.rvir¶
-
NFWPotential.
rvir
(vo, ro, H=70.0, Om=0.3, overdens=200.0, wrtcrit=False)¶ NAME:
rvirPURPOSE:
calculate the virial radius for this density distributionINPUT:
vo - velocity unit in km/s
ro - length unit in kpc
H= (default: 70) Hubble constant in km/s/Mpc
Om= (default: 0.3) Omega matter
overdens= (200) overdensity which defines the virial radius
wrtcrit= (False) if True, the overdensity is wrt the critical density rather than the mean matter density
OUTPUT:
virial radius in natural unitsHISTORY:
2014-01-29 - Written - Bovy (IAS)