chan_selection_to_frequencies

chan_selection_to_frequencies(img: str, selection: str, unit: str = 'GHz') → list[float] | list[str][source]

Convert channel selection to frequency tuples for a given CASA cube.

Parameters:

  • img -- CASA cube name

  • selection -- Channel selection string using CASA selection syntax

  • unit -- Frequency unit

Returns:

List of pairs of frequency values (float) in the desired units