galpy.df.diskdf.meanvT

diskdf.meanvT(R, romberg=False, nsigma=None, phi=0.0)[source]

Calculate the mean tangential velocity at a given radius by marginalizing over velocity.

Parameters:

  • R (float) – Radius at which to calculate the mean tangential velocity.

  • romberg (bool, optional) – If True, use a Romberg integrator. Default is False.

  • nsigma (float, optional) – Number of sigma to integrate the velocities over.

  • phi (float, optional) – Azimuth angle at which to calculate the mean tangential velocity.

Returns:

The mean tangential velocity at the given radius.

Return type:

float or Quantity

Notes

  • 2011-03-30 - Written - Bovy (NYU)