H2 catalysis through superhydrogenation of interstellar polycyclic aromatic hydrocarbons

Frederik Doktor Skødt Simonsen, Pernille Ahlmann Jensen, Anders Witte Skov, Rijutha Jaganathan, John Thrower, Liv Hornekær

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

Abstract

Experimental data showing superhydrogenation of neutral polycyclic aromatic hydrocarbons (PAHs) coronene, pentacene and pentacenequinone is presented. PAH monolayers were prepared on a highly oriented pyrolytic graphite surface and subsequently exposed to a beam of atomic hydrogen. The superhydrogenated PAH species were examined via temperature programmed desorption measurements. Stable intermediate superhydrogenation degrees as well as fully superhydrogenated species are observed and the initial reaction cross section for coronene has been determined.
Original languageEnglish
Title of host publicationLaboratory Astrophysics : From Observations to Interpretation
EditorsF. Salama, H. Linnartz
Number of pages3
Place of publicationCambridge
PublisherCambridge University Press
Publication dateOct 2020
Pages264-266
DOIs
Publication statusPublished - Oct 2020
EventIAU Symposium - Cambridge, United Kingdom
Duration: 14 Apr 201919 Apr 2019
Conference number: 350

Conference

ConferenceIAU Symposium
Number350
Country/TerritoryUnited Kingdom
CityCambridge
Period14/04/201919/04/2019
SeriesProceedings of the International Astronomical Union
NumberS350
Volume15
ISSN1743-9213

Keywords

  • Astrochemistry
  • ISM
  • clouds
  • laboratory
  • molecules

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