kinextract.read_template_xy

kinextract.read_template_xy(path: str) → tuple[ndarray, ndarray, ndarray | None][source]

Load a single stellar/SSP template spectrum file.

Parameters:

path (str) – Path to a whitespace-delimited template file with 2 columns (wavelength, flux) or 3 columns (wavelength, flux, flux_err). Files may be .txt (already-normalized flux) or .dat (physical flux units, e.g. MUSE spectral library files; these are median-normalized downstream by kinextract.templates.build_template_matrix_fortran()).

Returns:

  • wave (ndarray) – Template wavelength grid, in Angstroms.

  • flux (ndarray) – Template flux values.

  • flux_err (ndarray or None) – Per-pixel template flux uncertainty, or None if the file has no third column.