Relative Abundance of Ices in the Disks of T Tauri Stars

摘要

Very little work has been carried out to determine whether or not large organic molecules similar to those observed on the surfaces of minor solar system bodies also reside in the mantles of icy grains located in dense molecular clouds or in the local environments of protostars and PNIS stars. Ten years ago Lacy et al. first identified a broad absorption band near 4.62 micron, the C equivalent N stretch fundamental, in the spectra of two embedded protostars, W33A and NGC 7538 IRS 9. The only follow-up observational work to this study is that done by us under the sponsorship of Origins of Solar Systems under this grant.