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Infrared spectral evolution of carbon stars

Chen, Pei-Sheng; Shan, Hong-Guang; Yang, Xiao-Hong

We collected almost all Highly Processed Data Products (HPDP) of ISO SWS01 spectra for the Galactic visual carbon stars, infrared carbon stars, extreme carbon stars and carbon-rich proto-planetary nebulae (PPNs). Those infrared spectra are primarily analyzed and discussed. It is shown that either spectral shapes/peaks, or main molecular/dust featu…