sheap.SheaProducts.Utils.MasterCombineProfile module

Master combine Profile

#TODO cleaning

combine_fast(params_broad, params_narrow, limit_velocity=150.0, C_KMS=299792.458)

Efficiently combine multiple broad components with one narrow component into an effective line measurement.

Parameters:

  • params_broad (ndarray, shape (N, 3*n_broad)) – Broad component parameters grouped as [amp_i, mu_i, fwhm_i, …].

  • params_narrow (ndarray, shape (N, 3)) – Narrow component parameters [amp_n, mu_n, fwhm_n]. Only mu_n is used in velocity filtering.

  • limit_velocity (float, optional) – Velocity threshold in km/s for virial filtering. Default 150.

  • C_KMS (float, optional) – Speed of light in km/s. Default 299792.

Returns:

  • fwhm_final (ndarray, shape (N,)) – Effective full width at half maximum (same units as input).

  • amp_final (ndarray, shape (N,)) – Effective amplitude.

  • mu_final (ndarray, shape (N,)) – Effective line center.

Return type:

tuple[jax.numpy.ndarray, jax.numpy.ndarray, jax.numpy.ndarray]

Notes

  • Virial filtering selects the nearest broad component relative to the narrow component if offsets exceed limit_velocity.

  • Otherwise, amplitude-weighted averages of broad components are used.