Precursors of complex organic molecules: NH3 and CH3OH in the ices surrounding low-mass protostars

Details Precursors of complex organic molecules: NH3 and CH3OH in the ices surrounding low-mass protostars Precursors of complex organic molecules: NH3 and CH3OH in the ices surrounding low-mass protostars

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..251..105b&link_type=abstract

Organic Matter in Space, Proceedings of the International Astronomical Union, IAU Symposium, Volume 251, p. 105-110

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1

Line: Identification, Ism: Molecules, Ism: Abundances, Infrared: Stars, Stars: Formation, Astrochemistry

Scientific paper

NH3 and CH3OH are key molecules in the chemical networks leading to the formation of complex N- and O-bearing organic molecules. However, despite a number of recent studies, there is still a lot to learn about their abundances in the solid state and how they relate to those of other N/O-bearing organic molecules or to NH3 and CH3OH abundances in the gas phase. This is particularly true in the case of low-mass young stellar objects (YSOs), for which only the recent advent of the Spitzer Space Telescope has allowed high sensitivity observations of the ices in their enveloppes. We present a combined study of Spitzer data (obtained within the Legacy program “From Molecular Cores to Planet-Forming Disks”, c2d) and laboratory spectra, leading to the detections of NH3 and CH3OH in the ices of low-mass protostars. We investigate correlations with other ice features and conclude with prospects on further studies linking these two precursors of complex organic molecules with their gas-phase products.

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