gaussian_sigma_width¶
-
specutils.analysis.
gaussian_sigma_width
(spectrum, region=None)[source]¶ Estimate the width of the spectrum using a second-moment analysis.
The value is scaled to match the sigma/standard deviation parameter of a standard Gaussian profile. This will be calculated over the regions, if they are specified.
Parameters: spectrum :
Spectrum1D
The spectrum object over which the width will be calculated.
region: `~specutils.utils.SpectralRegion` or list of `~specutils.utils.SpectralRegion`
Region within the spectrum to calculate the gaussian sigma width. If region is
None
, computation is performed over entire spectrum.Returns: approx_sigma:
Quantity
or list (based on region input)Approximated sigma value of the spectrum
Notes
The spectrum should be continuum subtracted before being passed to this function.