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Showing 1–3 of 3 results
Advanced filters: Author: Emeric Bron Clear advanced filters

  • JWST reveals the chemistry of the disk of a young star in the Orion nebula, showing that it has water and CO in its inner regions that are shielded from UV radiation, whereas UV-processed molecules such as CH3+ and PAHs are detected in surface layers.

    • Ilane Schroetter
    • Olivier Berné
    • Marion Zannese
    Research
    Nature Astronomy
    Volume: 9, P: 1326-1336

  • JWST observations of CH3+ in a protoplanetary disk in the Orion star-forming region are reported showing that gas-phase organic chemistry in the interstellar medium is activated by ultraviolet irradiation and the methyl cation.

    • Olivier Berné
    • Marie-Aline Martin-Drumel
    • Mark G. Wolfire
    Research
    Nature
    Volume: 621, P: 56-59

  • The hydroxyl radical OH has been detected in a planet-forming disk exposed to ultraviolet radiation and in a rovibrationally excited state. These JWST observations, when coupled with quantum calculations, reveal the ongoing photodissociation of water and its reformation in the gas phase.

    • Marion Zannese
    • Benoît Tabone
    • Mark G. Wolfire
    Research
    Nature Astronomy
    Volume: 8, P: 577-586