Poster

Modeling the Infrared Emission of C60

1Qiong Li, 2Aigen Li, 1F.Y. Xiang, 1J.X. Zhong (1Xiangtan University, 2University of Missouri)

Neutral C60 has recently been detected in reflection nebulae, protoplanetary nebulae, planetary nebulae, Herbig Ae/Be stars, and young stellar objetcs through their characteristic infrared emission bands. We model the vibrational excitation of C60 and calculate the infrared emission spectra of C60 in a wide variety of regions (e.g. reflection nebulae excited by stars of a range of effective temperatures, (proto)planetary nebulae, and dust disks around Herbig Ae/Be stars). The strength of each band (per C atom) and the relative band strength are tabulated for these regions. By comparing with observed C60 spectrum, this table allows one to derive the abundance of C60, and the physical conditions (i.e. the starlight intensities).

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