A Database of Optical Constants of Cosmic Dust Analogs
aAstrophyscial Institute and University Observatory,
Friedrich Schiller University, D-07745 Jena, Germany,
bMax Planck Institute for Astronomy, D-69117 Heidelberg, Germany,
cAstronomical Institute of St.Petersburg Univeristy,
198504 St.Petersburg, Russia.
To be published in J. Quant. Spectrosc. Rad. Transf. in 2003.
We describe the current state and future of the WWW
Jena-Petersburg Database of Optical Constants (JPDOC)
that also contains references to papers and links to internet resources
related to measurements or calculations of the optical constants of
materials of astronomical interest.
The most important part of the JPDOC is data measured in broad wavelength
ranges and partly at low temperatures in the Jena Laboratory.
To demonstrate the use of these data, we show as examples
infrared refractive indices of forsterite, spinel, and hydrogenated
amorphous carbon (HAC)
and calculate the absorption cross-sections of small particles
composed of these materials.