Spectroscopic diagnostics of organic chemistry in the protostellar environment

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
S B CharnleyY J Kuan

Abstract

A combination of astronomical observations, laboratory studies, and theoretical modelling is necessary to determine the organic chemistry of dense molecular clouds. We present spectroscopic evidence for the composition and evolution of organic molecules in protostellar environments. The principal reaction pathways to complex molecule formation by catalysis on dust grains and by reactions in the interstellar gas are described. Protostellar cores, where warming of dust has induced evaporation of icy grain mantles, are excellent sites in which to study the interaction between gas phase and grain-surface chemistries. We investigate the link between organics that are observed as direct products of grain surface reactions and those which are formed by secondary gas phase reactions of evaporated surface products. Theory predicts observable correlations between specific interstellar molecules, and also which new organics are viable for detection. We discuss recent infrared observations obtained with the Infrared Space Observatory, laboratory studies of organic molecules, theories of molecule formation, and summarise recent radioastronomical searches for various complex molecules such as ethers, azaheterocyclic compounds, and amino acids.

References

May 1, 1991·Icarus·W M IrvineN Kaifu
Jul 28, 2007·Annual Review of Astronomy and Astrophysics·E F van Dishoeck, G A Blake

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Citations

Nov 14, 2015·Chemical Communications : Chem Comm·M FörstelR I Kaiser
Nov 17, 2015·Physical Chemistry Chemical Physics : PCCP·Dorian S N ParkerA H H Chang
Nov 5, 2014·Angewandte Chemie·Ralf I KaiserBrant M Jones
Mar 28, 2009·Physical Chemistry Chemical Physics : PCCP·Albert Rimola, Piero Ugliengo
Sep 8, 2010·Organic & Biomolecular Chemistry·Daniel J KnowlesJohn H Bowie
Dec 5, 2019·International Journal of Molecular Sciences·Tomasz J WasowiczBoguslaw Pranszke
Jul 13, 2006·The Journal of Physical Chemistry. a·Robert C Dunbar, Simon Petrie

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