galpy.df.diskdf.sigmaT2

diskdf.sigmaT2(R, romberg=False, nsigma=None, phi=0.0)[source]

Calculate sigma_T^2 at R by marginalizing over velocity

Parameters:

  • R (float) – Radius at which to calculate sigma_T^2 (can be Quantity)

  • romberg (bool, optional) – If True, use a romberg integrator (default: False)

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

  • phi (float, optional) – Azimuth (default: 0.0)

Returns:

Sigma_T^2 at R

Return type:

float or Quantity

Notes

  • 2011-03-30 - Written - Bovy (NYU)