Titlebook: European Conference on Laboratory Astrophysics ECLA2020; The Interplay of Dus Vito Mennella,Christine Joblin Conference proceedings 2023 Th

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Late-Type Stars Seen at?High Spectral Resolution at?Mid-Infrared Wavelengthsdust and small to intermediate sized molecules—especially molecules composed of refractory materials like metal atoms, carbon or silicon. To better understand the chemical composition of gas-phase species in the region around these stars, molecules can be observed at mid-infrared wavelengths, i.e.,

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The Stardust Machine Projecton zone of the inner envelope of evolved stars. Stardust offers a high degree of control and in-situ analysis capabilities of the molecular species and grains produced, and thus provides astronomers with a workbench to test ideas about possible chemical mechanisms operating in the photosphere of a r

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Generation of Interstellar Carbonaceous Dust Analogs in C2H2 Plasmas: Gas-Phase Reactions and Particed combining mass spectrometry measurements and a simple kinetic model, and the deposited dust has been characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. The analysis of the first stages of polymerization reveals a stepwise mechanism for the different species

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Physics and?Chemistry of?PhotoDissociation Regionseraction occurs in Photo-Dissociation Regions (PDRs) where stellar far-ultraviolet photons create a largely neutral, warm region. PDR emission dominates the IR spectra of star-forming galaxies and provides a unique tool to study in detail the physical and chemical processes that are relevant for int

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Gas and?Dust in?the?Circumstellar Envelopes of?Stars on?(and Beyond) the?AGBtmosphere, and photo-induced chemistry in the outflow. Commensurate with the evolution of the gas is the formation of different microscopic solid-state particles, dust grains. The molecular setup and the grain properties depend on the characteristics and evolutionary state of the central star.

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Die Zukunft der ?Sozialen Stadt“olecules and the growth of nanometer-sized clusters, is challenging. We aim to address what Al:O stoichiometries are involved and what cluster size characterises the amorphous-to-crystalline transition. To tackle these questions, we employ a quantum-chemical bottom-up approach.

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Jakob Lempp,Thomas Pitz,J?rn Sickmanned giant, supernova ejecta or other hypothetical cosmic environment. The chemistry in Stardust is based on gas-phase low-energy atom aggregation, and the densities of the elements under study can be tuned to approximately match those in the dust nucleation zone of evolved stars.