galpy.df.diskdf.oortK¶

diskdf.
oortK
(R, romberg=False, nsigma=None, phi=0.0)[source]¶ NAME:
oortKPURPOSE:
calculate the Oort function KINPUT:
R  radius at which to calculate K (can be Quantity)OPTIONAL INPUT:
nsigma  number of sigma to integrate the velocities overKEYWORDS:
romberg  if True, use a romberg integrator (default: False)OUTPUT:
Oort K at RHISTORY:
20110419  Written  Bovy (NYU)BUGS:
could be made more efficient, e.g., surfacemass is calculated multiple times we know this is zero, but it is calculated anyway (bug or feature?)