On bare carbon chain anions as possible carriers of the diffuse interstellar features

Details On bare carbon chain anions as possible carriers of the diffuse interstellar features On bare carbon chain anions as possible carriers of the diffuse interstellar features

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.310.1017g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 310, Issue 4, pp. 1017-1022.

Astronomy and Astrophysics

Astronomy

9

Line: Formation, Line: Identification, Dust, Extinction, Ism: Molecules

Scientific paper

The recent hypothesis that some of the diffuse interstellar bands originate in bare carbon chains such as C6-, C7-, C8- and C9- is tested using echelle spectra covering the whole range of possible (i.e. found in the laboratory) transitions of these molecules. Most of the expected features are below the level of detection in astrophysical spectra, and even those observed show intensity ratios that are different from those in the laboratory. Thus the hypothesis is very unlikely to be true.

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