On bare carbon chain anions as possible carriers of the diffuse interstellar features |
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| Authors: | G A Galazutdinov J Kre&#;owski F A Musaev |
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| Institution: | Special Astrophysical Observatory, Nizhnij Arkhyz 357147, Russia; Center for Astronomy, Nicholas Copernicus University, Gagarina 11, Pl-87-100 Toruń, Poland |
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| Abstract: | The recent hypothesis that some of the diffuse interstellar bands originate in bare carbon chains such as    and  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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| Keywords: | line: formation line: identification dust extinction ISM: molecules |
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