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Perspective: C60+ and laboratory spectroscopy related to diffuse interstellar bands

Campbell, E. K. and Maier, J. P.. (2017) Perspective: C60+ and laboratory spectroscopy related to diffuse interstellar bands. Journal of Chemical Physics, 146. p. 160901.

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Official URL: http://edoc.unibas.ch/58319/

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Abstract

In the last 30 years, our research has focused on laboratory measurements of the electronic spectra of organic radicals and ions. Many of the species investigated were selected based on their potential astrophysical relevance, particularly in connection with the identification of appealing candidate molecules for the diffuse interstellar absorptions. Notably, carbon chains and derivatives containing hydrogen and nitrogen atoms in their neutral and ionic forms were studied. These data could be obtained after developing appropriate techniques to record spectra at low temperatures relevant to the interstellar medium. The measurement of gas phase laboratory spectra has enabled direct comparisons with astronomical data to be made and though many species were found to have electronic transitions in the visible where the majority of diffuse bands are observed, none of the absorptions matched the prominent interstellar features. In 2015, however, the first carrier molecule was identified: C+60. This was achieved after the measurement of the electronic spectrum of C+60–He at 6K in a radiofrequency ion trap.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Physikalische Chemie (Maier)
UniBasel Contributors:Maier, John Paul and Campbell, Ewen
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:AIP Publishing
ISSN:0021-9606
e-ISSN:1089-7690
Note:Publication type according to Uni Basel Research Database: Journal article -- The final publication is available at AIP Publishing, see DOI link.
Language:English
Identification Number:
Last Modified:05 Jan 2018 13:25
Deposited On:05 Jan 2018 13:25

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