u2q

salter.u2q(u1, u2, warnings=True)[source] [edit on github]

Convert the linear and quadratic terms of the quadratic limb-darkening parameterization – called u_1 and u_2 in Kipping 2013 or a and b in Claret et al. 2013 – and convert them to q_1 and q_2 as described in Kipping 2013:

http://adsabs.harvard.edu/abs/2013MNRAS.435.2152K

Parameters:

u1 : float

Linear component of quadratic limb-darkening

u2 : float

Quadratic component of quadratic limb-darkening
Returns:

(q1, q2) : tuple of floats

Kipping (2013) style quadratic limb-darkening parameters