get_signal_mask

mufasa.signals.get_signal_mask(cube, snr_cut=3, minsize=2, expand=20, clean=True, return_rms=False)

Provide a 3D mask indicating signal regions based on RMS and SNR threshold.

Parameters:

• cube (SpectralCube) – SpectralCube object.

• snr_cut (float, optional) – Signal-to-noise threshold to define signals.

• minsize (int, optional) – Minimum size of connected components in spectral direction.

• expand (int, optional) – Number of spectral channels to expand signal regions.

• clean (bool, optional) – Remove spatially isolated pixels.

• return_rms (bool, optional) – Whether to return RMS along with the signal mask.

Returns:

• ndarray – Signal mask.

• Quantity, optional – RMS value if return_rms is True.