Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...343l..49b&link_type=abstract
Astronomy and Astrophysics, v.343, p.L49-L52 (1999)
Astronomy and Astrophysics
Astrophysics
37
Molecular Data, Ism: Molecules
Scientific paper
An original experimental technique capable to produce electronic spectra of cold gas phase cations of large aromatic molecules, previously suggested as a family of potential carriers of Diffuse Interstellar Bands (DIBs), has been developed and put to work. This achievement is demonstrated with the spectrum of the D_2<-D_0 electronic transition of the phenanthrene cation, C14H10(+) , in the near infrared. The results are compared with the spectrum of the same species isolated in a neon matrix, showing how the effect of this environment on the spectrum severely limits the capability of the matrix isolation technique for definite DIB assignments.
Bréchignac Philippe
Pino Thomas
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