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Organic matter in space: from star dust to the Solar System

Kwok, Sun

Organic compounds of high degree of complexity are now known to be widespread in the Universe, ranging from objects in our Solar System to distant galaxies. Through the techniques of millimeter-wave spectroscopy, over 140 molecules have been identified through their rotational transitions. Space infrared spectroscopy has detected the stretching an…

Infrared spectral variations of three Mira variable carbon stars with the 11.3 µm SiC feature

Chen, Pei-Sheng; Shan, Hong-Guang; Yang, Xiao-Hong +1 more

The spectral variations of three Mira variable carbon stars, V CrB, T Dra and V Cyg in the infrared are investigated based on ISO SWS data. It is found that either continua or molecular/dust features were variable with time in the infrared for these carbon stars during one and a half year observations. When stars were brighter the infrared continu…