Nanoparticles designed from low pressure plasma as model for astrophysical dust clouds

Ilija Stefanovic (1, 2) , Eva Kovacevic (1) , Johannes Berndt (1) , Yvonne Pendleton (3) , Jörg Winter (1)

1 Experimentalphysik II, Anwendungsorientierte Plasmaphysik (AOP)
2 Gaseous Electronics, Institute of Physics, Belgrade
3 ARC - NASA Ames Research Center

IR spectra gained from laboratory investigations on analogue materials are an important tool for the interpretation of astronomical IR data and the understanding of the observed phenomena in DISM. Dust particles grown in argon/acetylene low pressure plasma are proposed for a new analog. We test the validity of proposed analog according to the criteria from the literature. We also present preliminary results of nitrogen band at 4.62 μm, which has been identified in dense cold dust.

Mots clés: dust analogue; plasma polymerization; astrophysical dust; interstellar media; infra-red spectroscopy

Domaines: Physique des plasmas [physics.plasm-ph]

Ilija Stefanovic, Eva Kovacevic, Johannes Berndt, Yvonne Pendleton, Jörg Winter. Nanoparticles designed from low pressure plasma as model for astrophysical dust clouds. 2004. ⟨hal-00002007⟩