************************************************
README - what are these files in this directory?
************************************************

oldprograms/
  Old fortran routines since the days of nk2q
  need to take a look someday...

dorschner95_olmg50.optc
  Dorschner, J.; Begemann, B.; Henning, T.; Jaeger, C.; Mutschke, H.
  1995A&A...300..503D
  Olivine Fe 50% Mg 50% 

  Note: original data: 0.2um to 500.0um
        long wavelength end extrapolated to 4000.0um

dorschner95_olmg40.optc
  Dorschner, J.; Begemann, B.; Henning, T.; Jaeger, C.; Mutschke, H.
  1995A&A...300..503D
  Olivine Fe 60% Mg 40%

  Note: original data: 0.2um to 500.0um
        long wavelength end extrapolated to 4000.0um

begemann97_porousalmina.optc
  1.2um > l         : Harman et al. 1994, J. Appl. Phys., 76, 8032
  7.8um > l > 1.2um : Harris, 1955, J. Opt. Soc. Am., 45, 27
          l > 7.8um : Begemann et al. 1997, ApJ, 476, 199

H2O_franktest.optc
  Molster, F.
  2001
  Water Ice

  Note: original data: 0.0443um to 333.33um
        long wavelength end extrapolated to 500.0um

frankfors1.optc
  Molster, F. 
  2001
  Forsterite

  Note: original data: 0.0427um to 125um
        long wavelength end extrapolated to 500.0um

frankfors2.optc
  Molster, F. 
  2001
  Forsterite

  Note: original data: 0.0427um to 125um
        long wavelength end extrapolated to 500.0um

frankfors3.optc
  Molster, F. 
  2001
  Forsterite

  Note: original data: 0.0427um to 125um
        long wavelength end extrapolated to 500.0um

ens_p_am.optc
  Molster, F.
  2001
  Enstatite

  Note: original data: 0.0427um to 98.913um
        long wavelength end extrapolated to 500.0um

ens_s1_am.optc
  Molster, F.
  2001
  Enstatite

  Note: original data: 0.0427um to 98.913um
        long wavelength end extrapolated to 500.0um

ens_s2_am.optc
  Molster, F.
  2001
  Enstatite

  Note: original data: 0.0427um to 98.913um
        long wavelength end extrapolated to 500.0um

rouleau91_ac.optc
  Rouleau, Francois; Martin, P. G.
  1991ApJ...377..526R
  Amorphous Carbon

  Note: 0.000355179um to 301.218um
        These values are for the "BE" type.

rouleau+martin.dat
  The original table from the above ref. in the electronic form.

zubko96_ac_acar.optc
zubko96_ac_ach2.optc
zubko96_ac_be.optc
  Zubko, V. G.; Mennella, V.; Colangeli, L.; Bussoletti, E.
  1996MNRAS.282.1321Z
  Amorphous Carbon

_acar is amorphous carbon in Argon
_ach2 is amorphous carbon in H2
_be is burning benzene

  Note: micron, n, and K
        ~0.04um to 1000 to 2000um

cosil.lnk    
pyrmg40.lnk  
pyrmg50.lnk
  Jena Group N&K values
  (http://www.astro.uni-jena.de/Group/Subgroups/Labor/Labor/silicates.html)

  cosil.lnk:  values usually a little higher than DL for lambda < 12um,
              and lower than DL for lambda > 12um

	      not very different than the two below

  pyrmg40.lnk:  slightly higher than DL  at short lambda,  lower at long

  pyrmg50.lnk:  slightly higher than DL at short lambda,  lower at long.,
		not very different from pyrmg40.lnk

draine
  This directory contains n&k values of 
    graphite,
    silicate 
    SiC grain constants
  by Draine and collaborators dated 1995/10/25.

  See the README file in the directory for contents.

  Bascially for our purposes, we want the 

  eps_suvSil  file  which contains the "smoothed UV" silicate grain constants

  the five columns are:
  1) wavelength in microns
  2) real dielectric constant  minus one
  3) imaginary dielectric constant
  4) real refractive index minus one
  5) imaginary refractive index

  We want to use the columns 1, 4 and 5

  Need to edit the file,  use awk to add the one
  and then use reverse to reverse the wavelength order

  awk '{print($1,$4+1,$5)}' eps_suvSil > dwsuvSil.optical

  These numbers are in better agreement with the Jena values for silicates

dwsuvSil.optical_rev.optc
  Weingartner, J.C. & Draine, B.T. 1999, ApJ in prep.

  Note: this seems to be the best "astronomical silicates" values.

preibisch93_dice.optc
  Preibisch, Th.; Ossenkopf, V.; Yorke, H. W.; Henning, Th.
  1993A&A...279..577P

  Note: dirty ice; 0.1 - 800um

..................................................................

from www.astro.uni-jena.de/Laboratory/Database/carbon.html

Schnaiter et al, ``Matrix-isolated nano-sized carbon grains as an
analog for the 217.5 nm feature carrier'', Astrophys. J. 498, 486

"from matrix-isolation spectroscopy of non-agglomerated carbon
particles (Schnaiter et al. 1998). This unique experiment combined a
molecular-beam method for extraction of carbon grains out of their
condensation zone with the isolation of the particles in rare-gas
matrices. This allowed UV spectroscopy at non-agglomerated grains and
the application of simple Mie theory for evaluation of optical data. 
Data are available for carbon particles condensed in:

pure argon atmosphere -- schnaiter_ac_ar.optc
2/3 argon, 1/3 hydrogen -- schnaiter_ac_arh2.optc

data only from 0.2 to 1.0 microns wavelength...
