get_spectrum#

expecto.get_spectrum(T_eff, log_g, Z=0, alpha=0, cache=False, vacuum=True)[source]#

Download a PHOENIX model atmosphere spectrum for a star with given properties.

Parameters:

  • T_eff (float) – Effective temperature. The nearest grid-point will be selected.

  • log_g (float) – Surface gravity. The nearest grid-point will be selected.

  • Z (float) – Metallicity. The nearest grid-point will be selected.

  • alpha (float) – Alpha element abundance. The nearest grid-point will be selected.

  • cache (bool) – Cache the result to the local astropy cache. Default is False.

  • vacuum (bool) – If True, return wavelengths in a vacuum, otherwise return for air.

Returns:

spectrum – Model spectrum

Return type:

Spectrum1D