double_voigt

mcalf.profiles.voigt.double_voigt(x, a1, b1, s1, g1, a2, b2, s2, g2, d, clib=True)[source]

Double Voigt function with background

Parameters
  • x (ndarray) – Wavelengths to evaluate Voigt function at.

  • a1 (float) – Amplitude of 1st Voigt function.

  • b1 (float) – Central line core of 1st Voigt function.

  • s1 (float) – Sigma (for Gaussian) of 1st Voigt function.

  • g1 (float) – Gamma (for Lorentzian) of 1st Voigt function.

  • a2 (float) – Amplitude of 2st Voigt function.

  • b2 (float) – Central line core of 2st Voigt function.

  • s2 (float) – Sigma (for Gaussian) of 2st Voigt function.

  • g2 (float) – Gamma (for Lorentzian) of 2st Voigt function.

  • d (float) – Background.

  • clib (bool, optional, default = True) – Whether to use the complied C library or a slower Python version. If using the C library, the accuracy of the integration is reduced to give the code a significant speed boost. Python version can be used when speed is not a priority. Python version will remove deviations that are sometimes present around the wings due to the reduced accuracy.

Returns

result – The value of the Voigt function here.

Return type

ndarray of shape x.shape

See also

voigt_nobg()

Base Voigt function with no background

voigt()

Voigt function with background added

double_voigt_nobg()

Two Voigt functions added together

Notes

More information on the Voigt function can be found here: https://en.wikipedia.org/wiki/Voigt_profile