Formation Of Molecular Hydrogen On Tholins

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present results of experiments designed to learn about the formation of molecular hydrogen in Titan's atmosphere. In the experiments, neutral beams of hydrogen and deuterium atoms impinge on a tholin film kept in a ultra-high vacuum chamber. The products of reaction are measured as a function of sample temperature, and the chemical and physical state of tholins is monitored in-situ (using infrared spectrometry) and ex-situ (using atom force microscopy). From the analysis of data, we obtain the energetics as well as the mechanisms of the reaction.
This work is sponsored by the National Science Foundation through grant AST-0507405. The samples were kindly provided by Prof. Mark Smith (University of Arizona).
Group's Website: http://phy.syr.edu/astro

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