synthpop.modules.extinction.nishiyama2009
=========================================

.. py:module:: synthpop.modules.extinction.nishiyama2009

.. autoapi-nested-parse::

   Extinction law from Nishiyama et al (2009), for the direction of the Galactic
   center. We apply a a spline interpolation over the measurements provided in the paper.

   Valid from 1.2 to 8.0 microns.

   Source DOI: 10.1088/0004-637X/696/2/1407



Classes
-------

.. autoapisummary::

   synthpop.modules.extinction.nishiyama2009.Nishiyama2009


Module Contents
---------------

.. py:class:: Nishiyama2009(**kwargs)

   Bases: :py:obj:`synthpop.modules.extinction._extinction.ExtinctionLaw`


   Extinction law from Nishiyama et al. 2009
   Using a spline interpolation to estimate the extinction
   between 2.214 microns  and 7.60 microns
   Use Alambda prop lambda^-2.0 for lambda l below 2 microns 


   .. py:attribute:: extinction_law_name
      :value: 'Nishiyama2009'



   .. py:attribute:: law_ref_wavelength
      :value: 2.14



   .. py:attribute:: min_wavelength
      :value: 1.2



   .. py:attribute:: max_wavelength
      :value: 8.0



   .. py:method:: determine_parameters()
      :staticmethod:


      creates an interpolation to the table data.



   .. py:method:: Alambda_Aref(eff_wavelength: float or np.ndarray) -> float

      Given an effective wavelength lambda_eff, calculate the extinction ratio A_lambda/A_ref

      Parameters
      ----------
      eff_wavelength : float
          wavelength to compute extinction ratio at [microns]