Electronic spectra of astrophysically interesting cations

Journal Article · Thu Jan 22 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4906681· OSTI ID:22390903

Johnson, Anatoly ^[1]

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1. Department of Chemistry, University of Basel, Klingelbergstr. 80, CH-4056 Basel (Switzerland)

The electronic spectra of polyacetylene cations were recorded at 20K in the laboratory in an ion trap instrument. These can then be compared with diffuse interstellar band (DIB) absorptions. Examination of recently published data shows that the attribution of a weak DIB at ∼506.9 nm to diacetylene cation is not justified. Study of the higher excited electronic states of polyacetylene cations shows that their widths can still be sufficiently narrow for consideration as DIB carriers.

• OSTI ID: 22390903
• Journal Information: AIP Conference Proceedings, Vol. 1642, Issue 1; Conference: ICCMSE-2010: International Conference of Computational Methods in Sciences and Engineering 2010, Kos (Greece), 3-8 Oct 2010; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ASTROPHYSICS
CATIONS
COMPARATIVE EVALUATIONS
ELECTRONIC STRUCTURE
EXCITED STATES
LEVEL WIDTHS
POLYACETYLENES
TEMPERATURE RANGE 0013-0065 K
TRAPS