Kim, Martin, and Hendry (1994) dust with full scattering properties =================================================================== These are dust properties from `Kim, Martin, and Hendry (1994)`_, also known as KMH. The dust consists of astronomical silicates, graphite, and carbon and the size distribution was determined using a maximum entropy method. This dust type is meant to be applicable to the diffuse ISM (for low column densities) in the Galaxy. .. note:: The dust properties given here are given per unit mass of **gas+dust**, assuming a gas-to-dust ratio of 141.84. This means that when using Hyperion, the total densities should be specified. This version of the dust file was re-computed using the code described in :doc:`bhmie`, and includes the full numerical scattering matrix. This is different from the version used in `HOCHUNK`_, the radiative transfer code developed by B. Whitney et al., since that dust approximated the scattering with a Henyey-Greenstein function. If you are interested in using that dust instead, see :doc:`kmh_hg`. The dust file is available in the ``hyperion-dust`` directory as ``dust_files/kmh94_3.1_full.hdf5`` (once you have run ``python setup.py build_dust``). Rv=3.1 (``dust_files/kmh94_3.1_full.hdf5``) ------------------------------------------- The following plot gives an overview of the dust properties (as described in :doc:`../setup/setup_dust`): .. image:: kmh94_3.1_full.png :width: 800px :align: center .. _Kim, Martin, and Hendry (1994): http://dx.doi.org/10.1086/173714 .. _HOCHUNK: http://gemelli.colorado.edu/~bwhitney/codes/codes.html