template_logwl_resample¶
- specutils.analysis.template_logwl_resample(spectrum, template, wblue=None, wred=None, delta_log_wavelength=None, resampler=<specutils.manipulation.resample.LinearInterpolatedResampler object>)[source]¶
Resample a spectrum and template onto a common log-spaced spectral grid.
If wavelength limits are not provided, the function will use the limits of the merged (observed+template) wavelength scale for building the log-wavelength scale.
For the wavelength step, the function uses either the smallest wavelength interval found in the observed spectrum, or takes it from the
delta_log_wavelengthparameter.- Parameters:
- observed_spectrum
Spectrum1D The observed spectrum.
- template_spectrum
Spectrum1D The template spectrum.
- wblue, wred: float
Wavelength limits to include in the correlation.
- delta_log_wavelength: float
Log-wavelength step to use to build the log-wavelength scale. If None, use limits defined as explained above.
- resampler
A specutils resampler to use to actually do the resampling. Defaults to using a
LinearInterpolatedResampler.
- observed_spectrum
- Returns:
- resampled_observed
Spectrum1D The observed spectrum resampled to a common spectral_axis.
- resampled_template:
Spectrum1D The template spectrum resampled to a common spectral_axis.
- resampled_observed