1996A&A...315L.365D

We report the detection of various solid state molecular features in the SWS01 spectrum of a protostellar object, RAFGL 7009S. Identified molecules include H₂O, CO, CO₂ together with ¹³CO₂ and CH₄. Other less firmly identified features are observed that appear in laboratory spectra of UV photolysed ices. We thus confirm the previous detection of CO₂ in the IRAS-LRS spectra of a number of embedded sources and present the detection of solid CH₄. In addition, we estimate the column densities of some solid state species towards RAFGL 7009S. Due to its extreme extinction this source represents a unique target for the detection of weak solid state absorption features, that are commonly observed in laboratory experiments.