load_onedstds

specreduce.calibration_data.load_onedstds(dataset='snfactory', specfile='EG131.dat', cache=True, show_progress=False)

This is a convenience function for loading a standard star spectrum from the ‘onedstds’ dataset in the specreduce_data package. They will be downloaded from the repository on GitHub and cached by default.

Parameters:

datasetstr (default = “snfactory”)

Standard star spectrum database. Valid options are described in Spectrophotometric Standards.

specfilestr (default = “EG131.dat”)

Filename of the standard star spectrum.

cachebool (default = True)

Enable caching of downloaded data.

show_progressbool (default = False)

Show download progress bar if data is downloaded.

Returns:

spectrumNone or Spectrum1D

If the spectrum can be loaded, return it as a Spectrum1D. Otherwise return None. The spectral_axis units are Å and the flux units are milli-Janskys.