quad

salter.quad(Teff, logg, filt)

Quadratic limb-darkening law. All grid points have metallicities Z=0 (solar), microturbulence xi=2.

Parameters:

filt : string

Name of the filter used.

logg : float

Logarithm of the stellar surface gravity.

Teff : float

Host star effective temperature.

method : string, optional. Either ‘F’ or ‘L’

Method of computation: least-square or flux conservation

Returns:

a, b : float, float

The linear and quadratic limb-darkening terms for a quadratic law: I(mu)/I(1) = 1 - a*(1 - mu) - b*(1 - mu)**2