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

散開

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.,

nurture

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

包裹

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

上流社會

方便

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

整體

傷心

令人發(fā)膩

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.

意外的成功

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.

人類的發(fā)源

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.