Photoprocessing of large PAH cations.
Astrochemistry
ISM: molecules
methods: laboratory
ultraviolet: ISM
Journal
Proceedings of the International Astronomical Union. International Astronomical Union
ISSN: 1743-9221
Titre abrégé: Proc Int Astron Union
Pays: England
ID NLM: 101725418
Informations de publication
Date de publication:
Apr 2019
Apr 2019
Historique:
entrez:
19
10
2020
pubmed:
1
4
2019
medline:
1
4
2019
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 33072171
doi: 10.1017/S1743921319007063
pmc: PMC7116201
mid: EMS92599
doi:
Types de publication
Journal Article
Langues
eng
Pagination
388-389Subventions
Organisme : European Research Council
ID : 610256
Pays : International
Références
J Synchrotron Radiat. 2012 Mar;19(Pt 2):174-8
pubmed: 22338675
Astrophys J. 2016 May 10;822(2):
pubmed: 27212712