Interstellar Ices, from Molecular Cores to Planet-forming Disks
Dr. A. C. A. Boogert
California Institute of Technology
Abstract
In dense molecular clouds and the envelopes and disks surrounding
protostars molecules freeze out on grains. Heat and energetic
radiation from a nearby (proto)star are able to modify the structure
and chemical composition of these icy mantles. Potentially highly
complex molecules can be formed this way. The efficiency of the
chemical processes involved and the relevance for the composition of
solar system ices are poorly understood, however. I will discuss the
current understanding of the composition and evolution of interstellar
ices using recent Spitzer and Keck observations in the 3-20 micron
wavelength range.