barak.extinction.ElamV_FM¶

barak.extinction.ElamV_FM(wa, c1, c2, c3, c4, x0, gamma)[source]¶

Base function for Extinction curves that use the form from Fitzpatrick & Massa 90.

Parameters :	wa : array_like One or more wavelengths in Angstroms. c1, c2, c3, c4, gamma, x0 : float Constants that define the extinction law.
Returns :	ElamV : ndarray or float if wa is scalar extinction in the form E(lambda - V) / E(B - V)