Hydrocarbons in interstellar ice analogues : UV-vis spectroscopy and VUV photochemistry

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Hydrocarbons in interstellar ice analogues : UV-vis spectroscopy and VUV photochemistry

Title: Hydrocarbons in interstellar ice analogues : UV-vis spectroscopy and VUV photochemistry
Author: Cuylle, Steven Hendrik
Publisher: Leiden Observatory, Faculty of Science, Leiden University
Issue Date: 2015-01-29
Keywords: Astrochemistry
Laboratory
UV-vis spectroscopy
Molecular processes
Abstract: This thesis treats the chemical behaviour of carbonaceous molecules in water-dominated interstellar ices. VUV photons are considered as the chemical trigger to induce solid state chemistry as it is omnipresent. Lyman- radiation occurs even in dense molecular clouds as a result of cosmic ray excitation of H2 and subsequently emitting its excess energy at 122 nm (Mathis et al. 1983). It comprises the addition of new tools to laboratory astrochemistry, expanding knowledge on the behaviour of PAHs in interstellar ices and research into the role of C 2H2 and polyynes in interstellar ice VUV photochemistry. It provides with spectroscopic tools for observers to enable the identification of the hydrocarbons encountered in interstellar ices, and it provides modellers with reaction dynamic information that can be used as an input for their models.
Description: Promotor: H.V.J. Linnartz
With summary in Dutch
Faculty: Faculteit der Wiskunde en Natuurwetenschappen
Citation: Cuylle, S.H., 2015, Doctoral thesis, Leiden University
Sponsor: The European Communitys 7th Framework Programme under grant agreement no. 238258
Handle: http://hdl.handle.net/1887/31602
 

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