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MO: Fachverband Molekülphysik

MO 5: MO Poster 1

MO 5.9: Poster

Montag, 9. März 2020, 17:00–19:00, Empore Lichthof

Understanding Geometric and Electronic Properties of Small Silicon Oxides Relevant in Interstellar Dust Formation Processes — •Kai Pollow, Karim Saroukh, Robert Radloff, Lars Dahllöf, Marko Förstel, and Otto Dopfer — Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, D-10623 Berlin, Germany

Interstellar dust is an important ingredient in the formation of solar systems like our own. Some properties of interstellar dust are known, many questions, however, are still unanswered. Molecular SiO can form in the atmospheres of oxygen-rich stars and interstellar dust contains particles made of macroscopic silicates of various compositions. Intermediates have been elusive to observations.

We present fragmentation pathways, geometric structure and optical properties of several possible intermediate species obtained via photodissociation spectroscopy and quantum chemical calculations. Knowledge of these parameters may help to model the complex formation processes and enable an observational search for these intermediate species.