Article,
Chemical and physical processing of presolar materials in the solar nebula and the implications for preservation of presolar materials in comets
Space Science Reviews, 90 (1-2): 239--252 (1999)
Abstract
Chemical and physical processes in the outer solar nebula are reviewed.
It is argued that the outer nebula was a chemically active environment
with UV photochemistry and ion-molecule chemistry in its low density
regions and grain-catalyzed chemistry in Jovian protoplanetary sub-nebulae.
Presolar material was altered to greater or lesser extent by these
spatially and temporally variable processes, which mimic many features
of interstellar chemistry. Experiments, models, and observations
are recommended to address the questions of presolar versus nebular
dominance in the outer solar nebula and of how to distinguish interstellar
and nebular sources of cometary volatiles.
