Publications by authors named "Cedric Wolters"
Article Synopsis
- Polycyclic aromatic hydrocarbons (PAHs) make up about 20% of carbon in the interstellar medium and can form under various conditions, including in hot circumstellar environments and cold interstellar clouds.
- Isotopic analysis of PAHs from asteroid Ryugu and meteorite Murchison shows that some PAHs, like naphthalene, fluoranthene, and pyrene, have higher carbon isotopic values than expected, indicating they likely formed in the interstellar medium rather than in hot environments.
- In contrast, the PAHs phenanthrene and anthracene from Ryugu display isotopic values that suggest they were formed through higher-temperature reactions.
The Hayabusa2 spacecraft collected samples from the surface of the carbonaceous near-Earth asteroid (162173) Ryugu and brought them to Earth. The samples were expected to contain organic molecules, which record processes that occurred in the early Solar System. We analyzed organic molecules extracted from the Ryugu surface samples.
View Article and Find Full Text PDFRationale: Acquisition quality in analytical science is key to obtaining optimal data from a sample. In very high-resolution mass spectrometry, quality is driven by the optimization of multiple parameters, including the use of scans and micro-scans (or transients) for performing a Fourier transformation.
Methods: Thirty-nine mass spectra of a single synthesized complex sample were acquired using various numbers of scans and micro-scans determined through a simple experimental design.