poppy.specFromSpectralType(sptype, return_list=False, catalog=None)[source]

Get Pysynphot Spectrum object from a user-friendly spectral type string.

Given a spectral type such as ‘A0IV’ or ‘G2V’, this uses a fixed lookup table to determine an appropriate spectral model from Castelli & Kurucz 2004 or the Phoenix model grids. Depends on pysynphot and CDBS. This is just a convenient access function.


catalog: str

‘ck04’ for Castelli & Kurucz 2004, ‘phoenix’ for Phoenix models. If not set explicitly, the code will check if the phoenix models are present inside the $PYSYN_CDBS directory. If so, those are the default; otherwise, it’s CK04.

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