Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..938..156s&link_type=abstract
SPECTRAL LINE SHAPES IN ASTROPHYSICS: VI Serbian Conference on Spectral Line Shapes in Astrophysics (VI SCSLSA). AIP Conference
Astronomy and Astrophysics
Astrophysics
Magnetohydrodynamics And Plasmas, Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, Ultraviolet
Scientific paper
Carbonaceous compounds are a significant component of interstellar dust and the composition and structure of such materials is therefore of key importance. We present 1.5 μm-15 μm spectra of a plasma polymerized carbonaceous material produced in RF discharge under low pressure, using C2H2 as a precursor component. The plasma polymerization process described here provides a convenient way to make carbonaceous interstellar dust analogues under controlled conditions and to compare their characteristics to astronomical observations. Here, we focus on a comparison to the IR spectra of interstellar dust in the light of the criteria for ``good'' carbonaceous interstellar dust analogue. The UV bump at extinction curve 217.5 nm is another key feature for understanding the abundance of carbon in interstellar media. We present here some preliminary results of UV extinction on plasma polymerized astro-analogue.
Bendt Johannes
Kovacevic Eva
Stefanović Ilija
Winter Jörg
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