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Showing 1–6 of 6 results
Advanced filters: Author: J. Cernicharo Clear advanced filters

  • The authors report observations of recently formed dust and molecular gas in the atmosphere of IRC+10°216 and interpret HCN, SiS and SiC2 lines as large convective cells in the photosphere, as seen in Betelgeuse.

    • L. Velilla-Prieto
    • J. P. Fonfría
    • J. Cernicharo
    Research
    Nature
    Volume: 617, P: 696-700

  • Using an atomic gas aggregation process in the laboratory to simulate the conditions in the inner regions of a carbon-rich evolved star, Martínez, Santoro, Merino and colleagues. show that aromatic species and fullerenes form surprisingly inefficiently, and that amorphous carbon nanograins and aliphatic clusters dominate.

    • Lidia Martínez
    • Gonzalo Santoro
    • José A. Martín-Gago
    Research
    Nature Astronomy
    Volume: 4, P: 97-105

  • Water has been predicted to be almost absent in carbon-rich stars, so the detection of water vapour around the ageing carbon star IRC + 10216 challenged our understanding of the chemistry in old stars. Several explanations for the water have been postulated, but with only one water line detected it is difficult to discriminate between them. Now, dozens of water vapour lines have been detected in the far-infrared and sub-millimetre spectrum of IRC + 10216.

    • L. Decin
    • M. Agúndez
    • C. Waelkens
    Research
    Nature
    Volume: 467, P: 64-67

  • There is an urgent need of cleaner and energy-efficient technologies for future sustainable chemicals and fuels. Here the authors report the gas phase synthesis of long hydrocarbon chains from atomic carbon and molecular hydrogen precursors in an inert carrier gas, avoiding the use of metal catalysts.

    • Lidia Martínez
    • Pablo Merino
    • José A. Martín-Gago
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8