density_diagnostic#

irispy.utils.density.density_diagnostic( intensity_numerator, intensity_denominator, density_grid, *, ion, numerator, denominator, intensity_numerator_uncertainty=None, intensity_denominator_uncertainty=None, temperature=None, bounds_error=False, fill_value=nan, line_ratio_kwargs=None, )[source]#

Map an observed IRIS line ratio onto a theoretical density curve.

Parameters:

intensity_numerator (array-like or Quantity) – Measured integrated intensities for the numerator and denominator lines.
intensity_denominator (array-like or Quantity) – Measured integrated intensities for the numerator and denominator lines.
density_grid (Quantity) – Density grid on which to evaluate the theoretical ratio curve.
ion (fiasco.Ion) – Ion used to compute the theoretical ratio curve.
numerator (Quantity) – Required wavelengths of the numerator and denominator transitions.
denominator (Quantity) – Required wavelengths of the numerator and denominator transitions.
intensity_numerator_uncertainty – array-like or Quantity, optional Uncertainties on the measured integrated intensities.
intensity_denominator_uncertainty – array-like or Quantity, optional Uncertainties on the measured integrated intensities.
temperature (Quantity, optional) – Temperature at which to evaluate the theoretical ratio curve from ion. If omitted and scalar, uses the ion temperature; if omitted and non-scalar, falls back to ion.formation_temperature.
bounds_error (bool, optional) – Passed through to map_ratio_to_quantity.
fill_value (scalar or Quantity, optional) – Passed through to map_ratio_to_quantity.
line_ratio_kwargs (dict, optional) – Extra keyword arguments forwarded to fiasco.line_ratio.