refine_rms

mufasa.signals.refine_rms(cube, rms, sigma_cut=3, expand=20)

Refine the RMS estimate by masking out signal regions.

Parameters:

• cube (SpectralCube) – SpectralCube object.

• rms (Quantity) – Initial RMS estimate.

• sigma_cut (float, optional) – Signal-to-noise threshold to mask signals.

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

Returns:

• Quantity – Refined RMS.

• ndarray – Signal mask.