FM15p.07 — Formation of Polycyclic Organic Molecules on Crystalline Silicate Grains

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Aug 4th at 6:00 PM until 6:00 PM

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Author(s): Mark Hammonds4, Ming Tian2, Bing-Si Liu1, Na Wang2, Allan S.-C. Cheung2, Peter Sarre3

Institution(s): 1. Tianjin University, 2. University of Hong Kong, 3. University of Nottingham, 4. University of Tokyo

The pathways through which complex organic molecules are manufactured from simple chemical species are of key importance to the understanding of the evolution of organic material in the cosmos, and consequently the formation of prebiotic molecules. This work presents laboratory studies on the formation of polycyclic aromatic hydrocarbons (PAHs) over heated crystalline silicates from an acetylene feedstock. A rich variety of molecular species are formed and detected using time-of-flight mass spectrometry. Implications are discussed into formation and evolution of complex organic material in circumstellar environments.