Laboratory Studies of Simple Dust Analogs in Astrophysical Environments

Details Laboratory Studies of Simple Dust Analogs in Astrophysical Environments Laboratory Studies of Simple Dust Analogs in Astrophysical Environments

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pdac.book..128b&link_type=abstract

Protoplanetary Dust: Astrophysical and Cosmochemical Perspectives, eds.: D. Apai, D. S. Lauretta, 2010, Cambridge University Pre

Biology

Quantitative Biology

Biomolecules

Dust, Laboratory Astrophysics, Chemistry, Condensation, Dust Analogs, Catalysis, Thermal Annealing, Crystalline Silicates, Evaporation, Proto-Solar Nebula, Biomolecules

Scientific paper

Laboratory techniques seek to understand and to place limits upon chemical and physical processes that occur in space. Dust can be modified by long-term exposure to high-energy cosmic rays, thus rendering crystalline material amorphous.It can be heated to high temperatures, thus making amorphous material crystalline. Dust may be coated by organic molecules, changing its spectral properties, or may act as a catalyst in the synthesis of both simple and complex molecules. We describe experimental studies to understand such processes and report studies that focus on the properties of simple oxide grains. We give an overview of the synthesis and characterization techniques most often utilized to study the properties of solids in the laboratory and have concentrated on those techniques that have been most useful for the interpretation of astrophysical data. We also discuss silicate catalysis as an important mechanism that may drive the formation of complex molecular compounds relevant for prebiotic chemistry.

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