ISO-SWS SPECTRA OF THE C-RICH AGB STAR-R SCL AND DYNAMICAL MODEL ATMOSPHERES

We have monitored the spectral variations of the carbon rich AGE star R Scl in the 2-45 mu m range using the ISO-SWS instrument. We have als o computed hydrostatic and hydrodynamic model atmospheres and correspo nding synthetic spectra representative for two phases of R Scl. There is good qualitative agreement between observations and models in the n ear IR. This demonstrates the theoretical progress and the potential o f analysing carbon star spectra with self-consistent dynamical models.