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Title:FORBIDDEN TRANSITIONS IN THE VUV SPECTRUM OF N2
Author(s):Heays, Alan
Contributor(s):van Dishoeck, Ewine; Ubachs, Wim; Lewis, Brenton R; Salumbides, Edcel John; de Oliveira, Nelson; Niu, Ming Li
Subject(s):Mini-symposium: Accelerator-Based Spectroscopy
Abstract:The predissociation of chem{N_2} excited levels is enabled by the presence of optically-inaccessible triplet states. We have recorded vacuum ultraviolet (VUV) spectra at the SOLEIL synchrotron which reveal these states through their perturbation of allowed transitions or their direct appearance due to intensity borrowing. Some of these measurements were recorded at 900,K in order to access high-rotational levels, other measurements investigated weak forbidden transitions at high column density. Following careful analysis, significant new information has been obtained elucidating the states responsible for the astrochemically and atmospherically signficant chem{N_2} predissociation mechanism, and allowing for improvements in its quantitiative modelling.
Issue Date:24-Jun-15
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:ACS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/79464
Date Available in IDEALS:2016-01-05


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