Volume 7,
Edição 1, 2003,
11 pages
DOI: 10.1615/HighTempMatProc.v7.i1.160
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M. Line da Silva
Laboratoire d'Aerothermique, CNRS, 1C av. de la Recherche Scientifique, 45071 Orleans cedex 2, France
V. Lago
Laboratoire d'Aerothermique du CNRS 1C Avenue de la Recherche Scientifique, 45071 Orleans Cedex 2, France
E. Bedjanian
Laboratoire d'Aerothermique, CNRS, 1C av. de la Recherche Scientifique, 45071 Orleans cedex 2, France
A. Lebehot
Laboratoire d'Aerothermique du CNRS 1C Avenue de la Recherche Scientifique, 45071 Orleans Cedex 2, France
S. Mazouffre
Laboratoire d'Aerothermique, CNRS, 1C av. de la Recherche Scientifique, 45071 Orleans cedex 2, France
Michel A. Dudeck
ICARE Inst.-CNRS and University of Paris 6, 75252 Paris, France
Z. Szymanski
Instytut Podstawowych Problemow Techniki, PAN Swietokrzyska 21, 00-049 Warszawa, Poland
Z. Peradzynski
Instytut Podstawowych Problemow Techniki - PAN, Swietokrzyska 21,00-149 Warszawa, Polska
A. Chikhaoui
IUSTI, Universite de Provence, 5 rue Enrico Fermi, 13453 Marseille cedex 13, France
P. Boubert
IUSTI, Universite de Provence, 5 rue Enrico Fermi, 13453 Marseille cedex 13, France
RESUMO
Spectral emission of the plasma formed in front of a space vehicle entering the upper layer of Mars atmosphere is analysed. The high temperatures behind a hypersonic shock wave leads to dissociation and ionisation of the molecules found in the Martian atmosphere. The chemical reactions responsible for the formation of a Martian plasma are presented. A simulation of the spectra of some of the most important emitting systems is performed (numerical code SESAM), and a comparison with experimental spectra obtained in a low pressure arc-jet wind tunnel is presented. The influence on the shape of the simulated CN violet spectra, of the apparatus function, vibration and rotation temperatures is studied.