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Photoprocessing of large PAH cations.
Wenzel, Gabi; Castillo, Sarah Rodriguez; Mulas, Giacomo; Ji, Ming-Chao; Bonnamy, Anthony; Sabbah, Hassan; Giuliani, Alexandre; Nahon, Laurent; Joblin, Christine.
Afiliação
  • Wenzel G; IRAP, Université de Toulouse (UPS), CNRS, CNES, Toulouse, France.
  • Castillo SR; IRAP, Université de Toulouse (UPS), CNRS, CNES, Toulouse, France.
  • Mulas G; LCPQ/IRSAMC, Université de Toulouse (UPS), CNRS, Toulouse, France.
  • Ji MC; IRAP, Université de Toulouse (UPS), CNRS, CNES, Toulouse, France.
  • Bonnamy A; Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Cagliari, Selargius (CA), Italy.
  • Sabbah H; IRAP, Université de Toulouse (UPS), CNRS, CNES, Toulouse, France.
  • Giuliani A; IRAP, Université de Toulouse (UPS), CNRS, CNES, Toulouse, France.
  • Nahon L; IRAP, Université de Toulouse (UPS), CNRS, CNES, Toulouse, France.
  • Joblin C; LCAR/IRSAMC, Université de Toulouse (UPS), CNRS, Toulouse, France.
Proc Int Astron Union ; 15(Suppl 350): 388-389, 2019 Apr.
Article em En | MEDLINE | ID: mdl-33072171
ABSTRACT
In cosmic environments, polycyclic aromatic hydrocarbons (PAHs) strongly interact with vacuum ultraviolet (VUV) photons emitted by young stars. Trapped PAH cations ranging in size from 30 to 48 carbon atoms were irradiated by tunable synchrotron light (DESIRS beamline at SOLEIL). Their ionization and dissociation cross sections were determined and compared with TD-DFT computed photoabsorption cross sections. Evidence for radiative cooling is reported.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article